Finding the Fourth Proportional to 75,263,734.22, 112,761,965.75 and 31,448,037.08
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Solution
The fourth proportional to 75,263,734.22, 112,761,965.75 and 31,448,037.08 is: 47,116,217.62
Step by Step Solution
- Step 1: Write the proportion equation
75,263,734.22 : 112,761,965.75 = 31,448,037.08 : x - Step 2: Convert to fraction form
75,263,734.22/112,761,965.75 = 31,448,037.08/x - Step 3: Cross multiply
75,263,734.22x = 112,761,965.75 × 31,448,037.08 - Step 4: Simplify right side
75,263,734.22x = 3,546,142,480,244,355 - Step 5: Solve for x
x = 3,546,142,480,244,355/75,263,734.22 - Step 6: Final answer
x = 47,116,217.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.