Home / 381,678,477.60-572,517,716.40-136,312,167.90

Finding the Fourth Proportional to 381,678,477.60, 572,517,716.40 and 136,312,167.90

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Solution

The fourth proportional to 381,678,477.60, 572,517,716.40 and 136,312,167.90 is: 204,468,251.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,678,477.60 : 572,517,716.40 = 136,312,167.90 : x
  2. Step 2: Convert to fraction form
    381,678,477.60/572,517,716.40 = 136,312,167.90/x
  3. Step 3: Cross multiply
    381,678,477.60x = 572,517,716.40 × 136,312,167.90
  4. Step 4: Simplify right side
    381,678,477.60x = 78,041,131,083,641,376
  5. Step 5: Solve for x
    x = 78,041,131,083,641,376/381,678,477.60
  6. Step 6: Final answer
    x = 204,468,251.85

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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.