Finding the Fourth Proportional to 156,442,704,793.02, 215,896,147,310.28 and 87,866,202,623.58
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Solution
The fourth proportional to 156,442,704,793.02, 215,896,147,310.28 and 87,866,202,623.58 is: 121,258,288,459.75
Step by Step Solution
- Step 1: Write the proportion equation
156,442,704,793.02 : 215,896,147,310.28 = 87,866,202,623.58 : x - Step 2: Convert to fraction form
156,442,704,793.02/215,896,147,310.28 = 87,866,202,623.58/x - Step 3: Cross multiply
156,442,704,793.02x = 215,896,147,310.28 × 87,866,202,623.58 - Step 4: Simplify right side
156,442,704,793.02x = 18,969,974,625,215,340,085,248 - Step 5: Solve for x
x = 18,969,974,625,215,340,085,248/156,442,704,793.02 - Step 6: Final answer
x = 121,258,288,459.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.