Finding the Fourth Proportional to 215,651,337.68, 323,147,846.00 and 128,040,330.71
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Solution
The fourth proportional to 215,651,337.68, 323,147,846.00 and 128,040,330.71 is: 191,865,061.05
Step by Step Solution
- Step 1: Write the proportion equation
215,651,337.68 : 323,147,846.00 = 128,040,330.71 : x - Step 2: Convert to fraction form
215,651,337.68/323,147,846.00 = 128,040,330.71/x - Step 3: Cross multiply
215,651,337.68x = 323,147,846.00 × 128,040,330.71 - Step 4: Simplify right side
215,651,337.68x = 41,375,957,067,808,208 - Step 5: Solve for x
x = 41,375,957,067,808,208/215,651,337.68 - Step 6: Final answer
x = 191,865,061.05
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.