Finding the Fourth Proportional to 81,736,884.70, 122,466,586.20 and 49,320,672.55
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Solution
The fourth proportional to 81,736,884.70, 122,466,586.20 and 49,320,672.55 is: 73,897,291.52
Step by Step Solution
- Step 1: Write the proportion equation
81,736,884.70 : 122,466,586.20 = 49,320,672.55 : x - Step 2: Convert to fraction form
81,736,884.70/122,466,586.20 = 49,320,672.55/x - Step 3: Cross multiply
81,736,884.70x = 122,466,586.20 × 49,320,672.55 - Step 4: Simplify right side
81,736,884.70x = 6,040,134,396,286,549 - Step 5: Solve for x
x = 6,040,134,396,286,549/81,736,884.70 - Step 6: Final answer
x = 73,897,291.52
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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.