third-party sales for this segment increased 4% ( 4 % ) in 2014 compared with 2013 , primarily due to higher volumes and the acquisition of firth rixson ( $ 81 2014see above ) .
the higher volumes were mostly related to the aerospace ( commercial ) and commercial transportation end markets , somewhat offset by lower volumes in the industrial gas turbine end market .
atoi for the engineered products and solutions segment increased $ 16 in 2015 compared with 2014 , principally the result of net productivity improvements across most businesses , a positive contribution from inorganic growth , and overall higher volumes in this segment 2019s organic businesses .
these positive impacts were partially offset by unfavorable price/product mix , higher costs related to growth projects , and net unfavorable foreign currency movements , primarily related to a weaker euro .
atoi for this segment climbed $ 10 in 2014 compared with 2013 , mainly due to net productivity improvements across all businesses and overall higher volumes , partially offset by higher costs , primarily labor , and unfavorable product in 2016 , demand in the commercial aerospace end market is expected to remain strong , driven by significant order backlog .
also , third-party sales will include a positive impact due to a full year of sales related to the acquisitions of rti and tital .
additionally , net productivity improvements are anticipated while pricing pressure across all markets is expected .
transportation and construction solutions .

2015
2014
2013
Third-party sales
$1,882
$2,021
$1,951
ATOI
$166
$180
$167

this segment represents a portion of alcoa 2019s downstream operations and produces products that are used mostly in the nonresidential building and construction and commercial transportation end markets .
such products include integrated aluminum structural systems , architectural extrusions , and forged aluminum commercial vehicle wheels , which are sold directly to customers and through distributors .
a small part of this segment also produces aluminum products for the industrial products end market .
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 , the euro , and the brazilian real .
third-party sales for the transportation and construction solutions segment decreased 7% ( 7 % ) in 2015 compared with 2014 , primarily driven by unfavorable foreign currency movements , principally caused by a weaker euro and brazilian real , and lower volume related to the building and construction end market , somewhat offset by higher volume related to the commercial transportation end market .
third-party sales for this segment increased 4% ( 4 % ) in 2014 compared with 2013 , mostly the result of higher volume related to the commercial transportation and building and construction end markets , somewhat offset by lower volume in the industrial products and market .
atoi for the transportation and construction solutions segment declined $ 14 in 2015 compared with 2014 , mainly due to higher costs , net unfavorable foreign currency movements , primarily related to a weaker euro and brazilian real , and unfavorable price/product mix .
these negative impacts were mostly offset by net productivity improvements across all businesses .
atoi for this segment improved $ 13 in 2014 compared with 2013 , principally attributable to net productivity improvements across all businesses and overall higher volumes , partially offset by unfavorable product mix and higher costs , primarily labor .
in 2016 , the non-residential building and construction end market is expected to improve through growth in north america but will be slightly offset by overall weakness in europe .
also , north america build rates in the commercial .

Question: Analyse this data from a financial earnings document. what is the percentual contribution of the acquisition of firth rixson in the third-party sales in 2014?
Choices:
0.04152
2021.04008
0.45
1157.14286
0.04008
Correct choice index: 4