Finding the Fourth Proportional to 74,861,697.70, 112,292,546.55 and 18,128,001.70
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Solution
The fourth proportional to 74,861,697.70, 112,292,546.55 and 18,128,001.70 is: 27,192,002.55
Step by Step Solution
- Step 1: Write the proportion equation
74,861,697.70 : 112,292,546.55 = 18,128,001.70 : x - Step 2: Convert to fraction form
74,861,697.70/112,292,546.55 = 18,128,001.70/x - Step 3: Cross multiply
74,861,697.70x = 112,292,546.55 × 18,128,001.70 - Step 4: Simplify right side
74,861,697.70x = 2,035,639,474,755,729 - Step 5: Solve for x
x = 2,035,639,474,755,729/74,861,697.70 - Step 6: Final answer
x = 27,192,002.55
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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.