Finding the Fourth Proportional to 88,068,028.80, 132,102,043.20 and 74,463,139.20
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Solution
The fourth proportional to 88,068,028.80, 132,102,043.20 and 74,463,139.20 is: 111,694,708.80
Step by Step Solution
- Step 1: Write the proportion equation
88,068,028.80 : 132,102,043.20 = 74,463,139.20 : x - Step 2: Convert to fraction form
88,068,028.80/132,102,043.20 = 74,463,139.20/x - Step 3: Cross multiply
88,068,028.80x = 132,102,043.20 × 74,463,139.20 - Step 4: Simplify right side
88,068,028.80x = 9,836,732,831,406,014 - Step 5: Solve for x
x = 9,836,732,831,406,014/88,068,028.80 - Step 6: Final answer
x = 111,694,708.80
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Double scale
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Similar ratio
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1.5x scale
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.