Good day, and welcome to the QuickBooks Community! It is important to know the balance of the accounts, especially if they are in different currencies, so I will show you where to check them.
Foreign currency ledgers are shown with their running balances in the Chart of Accounts, so that's where you can find them. I have an example in the screenshot below where the balance is shown based on the account's currency, GBP.
I'm also adding these few articles about Chart of Accounts for your reference in the future: