Since 1 US Dollar is equal to 111.151129 Serbian Dinars, we could say that n United States Dollars are equal to 111.151129 times n Serbian Dinars. In other words, we could use the following formula:
Serbian Dinars = United States Dollars x 111.151129
For example, let's say that we want to convert 2.0 United States Dollars to Serbian Dinars. Then, we just replace United States Dollars in the abovementioned formula with 2.0:
Serbian Dinars = 2.0 x 111.151129
That is, 2.0 United States Dollars are equal to 222.302258 Serbian Dinars.