Finding the Fourth Proportional to 218,491,449.80, 327,863,145.90 and 82,274,592.20
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Solution
The fourth proportional to 218,491,449.80, 327,863,145.90 and 82,274,592.20 is: 123,459,323.70
Step by Step Solution
- Step 1: Write the proportion equation
218,491,449.80 : 327,863,145.90 = 82,274,592.20 : x - Step 2: Convert to fraction form
218,491,449.80/327,863,145.90 = 82,274,592.20/x - Step 3: Cross multiply
218,491,449.80x = 327,863,145.90 × 82,274,592.20 - Step 4: Simplify right side
218,491,449.80x = 26,974,806,626,331,600 - Step 5: Solve for x
x = 26,974,806,626,331,600/218,491,449.80 - Step 6: Final answer
x = 123,459,323.70
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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.