Home / 82,537,727.30-123,512,658.15-71,872,165.70

Finding the Fourth Proportional to 82,537,727.30, 123,512,658.15 and 71,872,165.70

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Solution

The fourth proportional to 82,537,727.30, 123,512,658.15 and 71,872,165.70 is: 107,552,297.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,537,727.30 : 123,512,658.15 = 71,872,165.70 : x
  2. Step 2: Convert to fraction form
    82,537,727.30/123,512,658.15 = 71,872,165.70/x
  3. Step 3: Cross multiply
    82,537,727.30x = 123,512,658.15 × 71,872,165.70
  4. Step 4: Simplify right side
    82,537,727.30x = 8,877,122,232,604,256
  5. Step 5: Solve for x
    x = 8,877,122,232,604,256/82,537,727.30
  6. Step 6: Final answer
    x = 107,552,297.88

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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.