Finding the Fourth Proportional to 88,128,915.30, 132,193,372.95 and 82,156,947.30
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Solution
The fourth proportional to 88,128,915.30, 132,193,372.95 and 82,156,947.30 is: 123,235,420.95
Step by Step Solution
- Step 1: Write the proportion equation
88,128,915.30 : 132,193,372.95 = 82,156,947.30 : x - Step 2: Convert to fraction form
88,128,915.30/132,193,372.95 = 82,156,947.30/x - Step 3: Cross multiply
88,128,915.30x = 132,193,372.95 × 82,156,947.30 - Step 4: Simplify right side
88,128,915.30x = 10,860,603,974,862,396 - Step 5: Solve for x
x = 10,860,603,974,862,396/88,128,915.30 - Step 6: Final answer
x = 123,235,420.95
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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.