Bill Gates, the former CEO of Microsoft and one of the richest men in the world, said in a tweet on Monday that he and his wife of 27 years, Melinda Gates, are getting divorced. “After a great deal of thought and a lot of work on our relationship, we have made the decision to end our marriage,” a statement from the two said. “Over the last 27 years, we have raised three incredible children and built a foundation that works all over the world to enable all people to lead healthy, productive lives,” the statement added. They did not provide any other details about the split. The couple posted the statement on their respective Twitter accounts. “We continue to share a belief in that mission and will continue our work together at the foundation, but we no longer believe we can grow together as a couple in this next phase …