Home / 278,451,538,833.38-417,251,001,101.90-187,355,538,363.42

Finding the Fourth Proportional to 278,451,538,833.38, 417,251,001,101.90 and 187,355,538,363.42

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Solution

The fourth proportional to 278,451,538,833.38, 417,251,001,101.90 and 187,355,538,363.42 is: 280,746,467,667.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,451,538,833.38 : 417,251,001,101.90 = 187,355,538,363.42 : x
  2. Step 2: Convert to fraction form
    278,451,538,833.38/417,251,001,101.90 = 187,355,538,363.42/x
  3. Step 3: Cross multiply
    278,451,538,833.38x = 417,251,001,101.90 × 187,355,538,363.42
  4. Step 4: Simplify right side
    278,451,538,833.38x = 78,174,285,944,122,433,863,680
  5. Step 5: Solve for x
    x = 78,174,285,944,122,433,863,680/278,451,538,833.38
  6. Step 6: Final answer
    x = 280,746,467,667.76

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1.5x scale

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.