So you probably know my brother (London) also made a blog kind of like this but about the Hobbit. This is about the Baggins Family Tree and the 2 heroes we all know and love who are Frodo and Bilbo. Basically, the Hobbit and Lord of the Rings are in different timelines. At this stage in the story, Bilbo has the ring and is very close to the Arkenstone and Smaug and tons of gold. Now, Frodo is trying to get to Mount Doom to destroy the ring forever. I think he kills Gollum because Gollum jumps into the lava at Mount Doom to retrieve the ring but fails.
Bilbo and Frodo are related by blood which you can see in the family tree at the end of this blog.