if the big piston is 10 times of the sizes of the smaller piston to balance a 500Nload at the big piston (assume that the piston level are the same and the weight of the big piston can be ignored

1 answer

consider two pistons, A and B

ForceA/areaA=forceB/areaB
in your case, AreaA/AreaB = 10 as I read it.