Finding the Fourth Proportional to 237,861,159.30, 356,791,738.95 and 212,918,861.70
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Solution
The fourth proportional to 237,861,159.30, 356,791,738.95 and 212,918,861.70 is: 319,378,292.55
Step by Step Solution
- Step 1: Write the proportion equation
237,861,159.30 : 356,791,738.95 = 212,918,861.70 : x - Step 2: Convert to fraction form
237,861,159.30/356,791,738.95 = 212,918,861.70/x - Step 3: Cross multiply
237,861,159.30x = 356,791,738.95 × 212,918,861.70 - Step 4: Simplify right side
237,861,159.30x = 75,967,690,921,197,552 - Step 5: Solve for x
x = 75,967,690,921,197,552/237,861,159.30 - Step 6: Final answer
x = 319,378,292.55
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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.