BROKEN RANKED SYSTEM

Today i played a ranked game (solo). So I got a premade team and i looked at op gg what division are. Then saw I that ryze was bronze 1. But the problem isn´t in that, the problem is that we got 2 gold players in enemy team. So I think: if you are bonze you can´t qeue up whit gold player but you can play a game whit them that is like gold player getting dimond division player in his ranked game! So i wana know why did i get a bronze in my team and 2 gold players in enemy team.

(special note) I obviusly lost that game :(