So how does this work?

For example: If I send 5,000,000 EMO do I have to wait until someone else sends 5,000,000 EMO or will I get a payout no matter what amount the next person sends?

If amounts do not need to be matched then can someone not simply play the system by sending 5,000,000 EMO from one account and then 100 EMO from another and keep getting big payouts?