A Mexican billionaire tops Forbes' world's richest list for a fourth year in a row.
Microsoft founder Bill Gates takes over Forbes' world's richest list, topping Mexican billionaire Carlos Slim Helu. Find out what other billionaires made this year's list.
The views expressed are not those of this company or its affiliated companies. Please note by clicking on "Post" you acknowledge that you have read the Terms of Service and the comment you are posting is in compliance with such terms.