<P> Bill Gates , founder of Microsoft , added $9 billion to his fortune since 2013 and topped the 2014 billionaire list . He has topped the list 15 of the previous 20 years , but was last number one in 2009 . Mexican tycoon Carlos Slim came in second place after being number one the previous four years . Zara founder Amancio Ortega placed third for the second consecutive year . American investor Warren Buffett was in the top five for the 20th consecutive year , placing fourth . Oracle founder Larry Ellison rounded out the top five . America 's Christy Walton was the highest ranking female , placing ninth overall . Aliko Dangote of Nigeria became the first African ever to crack the top 25 , with an estimated net worth of $25 billion . 24 - year - old Perenna Kei , daughter of Chinese real estate developer Ji Haipeng , was the youngest person on the list . At age 99 , David Rockefeller was the oldest . </P>
who has topped the 28th annual world billionaires list of forbes released on 3rd march 2014
Bill Gates