Finding the Fourth Proportional to 2,381,677,562.75, 3,572,923,349.20 and 981,896,643.12
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Solution
The fourth proportional to 2,381,677,562.75, 3,572,923,349.20 and 981,896,643.12 is: 1,473,012,761.08
Step by Step Solution
- Step 1: Write the proportion equation
2,381,677,562.75 : 3,572,923,349.20 = 981,896,643.12 : x - Step 2: Convert to fraction form
2,381,677,562.75/3,572,923,349.20 = 981,896,643.12/x - Step 3: Cross multiply
2,381,677,562.75x = 3,572,923,349.20 × 981,896,643.12 - Step 4: Simplify right side
2,381,677,562.75x = 3,508,241,442,704,547,328 - Step 5: Solve for x
x = 3,508,241,442,704,547,328/2,381,677,562.75 - Step 6: Final answer
x = 1,473,012,761.08
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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.