Finding the Fourth Proportional to 384,172,759.72, 576,079,732.62 and 138,497,038.12
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Solution
The fourth proportional to 384,172,759.72, 576,079,732.62 and 138,497,038.12 is: 207,680,879.68
Step by Step Solution
- Step 1: Write the proportion equation
384,172,759.72 : 576,079,732.62 = 138,497,038.12 : x - Step 2: Convert to fraction form
384,172,759.72/576,079,732.62 = 138,497,038.12/x - Step 3: Cross multiply
384,172,759.72x = 576,079,732.62 × 138,497,038.12 - Step 4: Simplify right side
384,172,759.72x = 79,785,336,688,831,552 - Step 5: Solve for x
x = 79,785,336,688,831,552/384,172,759.72 - Step 6: Final answer
x = 207,680,879.68
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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.