Finding the Fourth Proportional to 156,829,715.70, 235,244,573.55 and 80,127,251.70
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Solution
The fourth proportional to 156,829,715.70, 235,244,573.55 and 80,127,251.70 is: 120,190,877.55
Step by Step Solution
- Step 1: Write the proportion equation
156,829,715.70 : 235,244,573.55 = 80,127,251.70 : x - Step 2: Convert to fraction form
156,829,715.70/235,244,573.55 = 80,127,251.70/x - Step 3: Cross multiply
156,829,715.70x = 235,244,573.55 × 80,127,251.70 - Step 4: Simplify right side
156,829,715.70x = 18,849,501,155,900,016 - Step 5: Solve for x
x = 18,849,501,155,900,016/156,829,715.70 - Step 6: Final answer
x = 120,190,877.55
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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.