In my worldbuilding, I have created a plain of lava that extended to a volume of 59 to 77 million cubic kilometers and 4500 meters at the thickest.
As I understand it, the basic formula of volume is as follows:
Area x Depth = Volume
So here is how I have imagined my imaginary lava flow at that formula:
??? x 4500 meters = 59 million cubic kilometers (minimum)
??? x 4500 meters = 77 million cubic kilometers (maximum)
What would the area be in this scenario?