Home / 381,721,007.20-572,749,472.40-177,143,778.40

Finding the Fourth Proportional to 381,721,007.20, 572,749,472.40 and 177,143,778.40

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Solution

The fourth proportional to 381,721,007.20, 572,749,472.40 and 177,143,778.40 is: 265,793,612.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,721,007.20 : 572,749,472.40 = 177,143,778.40 : x
  2. Step 2: Convert to fraction form
    381,721,007.20/572,749,472.40 = 177,143,778.40/x
  3. Step 3: Cross multiply
    381,721,007.20x = 572,749,472.40 × 177,143,778.40
  4. Step 4: Simplify right side
    381,721,007.20x = 101,459,005,617,542,512
  5. Step 5: Solve for x
    x = 101,459,005,617,542,512/381,721,007.20
  6. Step 6: Final answer
    x = 265,793,612.88

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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.