Finding the Fourth Proportional to 88,128,893.80, 132,193,340.70 and 82,156,925.80
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Solution
The fourth proportional to 88,128,893.80, 132,193,340.70 and 82,156,925.80 is: 123,235,388.70
Step by Step Solution
- Step 1: Write the proportion equation
88,128,893.80 : 132,193,340.70 = 82,156,925.80 : x - Step 2: Convert to fraction form
88,128,893.80/132,193,340.70 = 82,156,925.80/x - Step 3: Cross multiply
88,128,893.80x = 132,193,340.70 × 82,156,925.80 - Step 4: Simplify right side
88,128,893.80x = 10,860,598,483,144,020 - Step 5: Solve for x
x = 10,860,598,483,144,020/88,128,893.80 - Step 6: Final answer
x = 123,235,388.70
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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.