engineered products and solutions .
[['', '2015', '2014', '2013'], ['third-party sales', '$ 5342', '$ 4217', '$ 4054'], ['atoi', '$ 595', '$ 579', '$ 569']]
this segment represents a portion of alcoa 2019s downstream operations and produces products that are used mostly in the aerospace ( commercial and defense ) , commercial transportation , and power generation end markets .such products include fastening systems ( titanium , steel , and nickel alloys ) and seamless rolled rings ( mostly nickel alloys ) ; and investment castings ( nickel super alloys , titanium , and aluminum ) , including airfoils and forged jet engine components ( e.g. , jet engine disks ) , all of which are sold directly to customers and through distributors .more than 70% ( 70 % ) of the third- party sales in this segment are from the aerospace end market .a small part of this segment also produces various forging and extrusion metal products for the oil and gas , industrial products , automotive , and land and sea defense end markets .seasonal decreases in sales are generally experienced in the third quarter of the year due to the european summer slowdown across all end markets .generally , the sales and costs and expenses of this segment are transacted in the local currency of the respective operations , which are mostly the u.s .dollar and the euro .in march 2015 , alcoa completed the acquisition of an aerospace castings company , tital , a privately held company with approximately 650 employees based in germany .tital produces aluminum and titanium investment casting products for the aerospace and defense end markets .in 2014 , tital generated sales of approximately $ 100 .the purpose of this acquisition is to capture increasing demand for advanced jet engine components made of titanium , establish titanium-casting capabilities in europe , and expand existing aluminum casting capacity .the operating results and assets and liabilities of tital were included within the engineered products and solutions segment since the date of acquisition .also in march 2015 , alcoa signed a definitive agreement to acquire rti international metals , inc .( rti ) , a global supplier of titanium and specialty metal products and services for the commercial aerospace , defense , energy , and medical device end markets .on july 23 , 2015 , after satisfying all customary closing conditions and receiving the required regulatory and rti shareholder approvals , alcoa completed the acquisition of rti .the purpose of this acquisition is to expand alcoa 2019s range of titanium offerings and add advanced technologies and materials , primarily related to the aerospace end market .in 2014 , rti generated net sales of $ 794 and had approximately 2600 employees .alcoa estimates that rti will generate approximately $ 1200 in third-party sales by 2019 .in executing its integration plan for rti , alcoa expects to realize annual cost savings of approximately $ 100 by 2019 due to synergies derived from procurement and productivity improvements , leveraging alcoa 2019s global shared services , and driving profitable growth .the operating results and assets and liabilities of rti were included within the engineered products and solutions segment since the date of acquisition .on november 19 , 2014 , after satisfying all customary closing conditions and receiving the required regulatory approvals , alcoa completed the acquisition of firth rixson , a global leader in aerospace jet engine components .firth rixson manufactures rings , forgings , and metal products for the aerospace end market , as well as other markets requiring highly engineered material applications .the purpose of this acquisition is to strengthen alcoa 2019s aerospace business and position the company to capture additional aerospace growth with a broader range of high-growth , value- add jet engine components .this business generated sales of approximately $ 970 in 2014 and has 13 operating facilities in the united states , united kingdom , europe , and asia employing approximately 2400 people combined .in executing its integration plan for firth rixson , alcoa expects to realize annual cost savings of more than $ 100 by 2019 due to synergies derived from procurement and productivity improvements , optimizing internal metal supply , and leveraging alcoa 2019s global shared services .the operating results and assets and liabilities of firth rixson were included within the engineered products and solutions segment since the date of acquisition .third-party sales for the engineered products and solutions segment improved 27% ( 27 % ) in 2015 compared with 2014 , largely attributable to the third-party sales ( $ 1310 ) of three acquired businesses ( see above ) , primarily aerospace- related , and higher volumes in this segment 2019s organic businesses , mostly related to the aerospace end market .these positive impacts were slightly offset by unfavorable foreign currency movements , principally driven by a weaker euro. .

Question: what is the percentage of the three acquired businesses , that were responsible for the 27% ( 27 % ) improvement in third-party sales?
Answer: 24.52%
Explanation: it is the total sales of these three aquired businesses divided by the total of the third-party sales.\\n