Brazilian businessman João Roberto Marinho has a net worth of $7.5 billion as of September 2015 according to Forbes. He is the third child among the four children of the late communications tycoon Roberto Marinho. He presently serves as the Chairman of the Editorial Board and vice president of Globo Organizations, Latin America’s largest media group. It commenced in Rio de Janeiro in 1925 when the paper was launched by their grandfather, Irineu Marinho, who died just 25 days following the very first issue was published. Joo Roberto started his career as a journalist for O-Globo, a Brazilian paper that is the most notable print publication of the media conglomerate. Their grandfather additionally serves as the Managing Director of the Roberto Marinho Foundation. He is also a member of the Board of Governance of the Instituto Millenium. His oldest son is likewise an amateur equestrian.