Home / 145,123,789.32-217,174,397.40-90,562,046.76

Finding the Fourth Proportional to 145,123,789.32, 217,174,397.40 and 90,562,046.76

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Solution

The fourth proportional to 145,123,789.32, 217,174,397.40 and 90,562,046.76 is: 135,524,010.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,123,789.32 : 217,174,397.40 = 90,562,046.76 : x
  2. Step 2: Convert to fraction form
    145,123,789.32/217,174,397.40 = 90,562,046.76/x
  3. Step 3: Cross multiply
    145,123,789.32x = 217,174,397.40 × 90,562,046.76
  4. Step 4: Simplify right side
    145,123,789.32x = 19,667,757,932,413,624
  5. Step 5: Solve for x
    x = 19,667,757,932,413,624/145,123,789.32
  6. Step 6: Final answer
    x = 135,524,010.40

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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.