Home / 82,487,088.56-123,542,157-39,386,479.92

Finding the Fourth Proportional to 82,487,088.56, 123,542,157 and 39,386,479.92

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Solution

The fourth proportional to 82,487,088.56, 123,542,157 and 39,386,479.92 is: 58,989,725.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,487,088.56 : 123,542,157 = 39,386,479.92 : x
  2. Step 2: Convert to fraction form
    82,487,088.56/123,542,157 = 39,386,479.92/x
  3. Step 3: Cross multiply
    82,487,088.56x = 123,542,157 × 39,386,479.92
  4. Step 4: Simplify right side
    82,487,088.56x = 4,865,890,685,953,988
  5. Step 5: Solve for x
    x = 4,865,890,685,953,988/82,487,088.56
  6. Step 6: Final answer
    x = 58,989,725.19

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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.