Question: how is the richest man in the world top 10?
Answer: Jeff Bezos. Amazon founder and CEO Jeff Bezos has a net worth of 189.5 Billion US$ and ranks as the richest one on the earth today. ... 
Bill Gates. ... 
Bernard Arnault & Family. ... 
Mark Zuckerberg. ... 
Warren Buffet. ... 
Mukesh Ambani. ... 
Elon Musk. ... 
Steve Ballmer.