Home / 381,678,641.70-572,517,962.55-260,746,289.70

Finding the Fourth Proportional to 381,678,641.70, 572,517,962.55 and 260,746,289.70

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Solution

The fourth proportional to 381,678,641.70, 572,517,962.55 and 260,746,289.70 is: 391,119,434.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,678,641.70 : 572,517,962.55 = 260,746,289.70 : x
  2. Step 2: Convert to fraction form
    381,678,641.70/572,517,962.55 = 260,746,289.70/x
  3. Step 3: Cross multiply
    381,678,641.70x = 572,517,962.55 × 260,746,289.70
  4. Step 4: Simplify right side
    381,678,641.70x = 149,281,934,521,516,032
  5. Step 5: Solve for x
    x = 149,281,934,521,516,032/381,678,641.70
  6. Step 6: Final answer
    x = 391,119,434.55

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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.