Home / 432,942,507.38-649,522,041.89-126,234,620.25

Finding the Fourth Proportional to 432,942,507.38, 649,522,041.89 and 126,234,620.25

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Solution

The fourth proportional to 432,942,507.38, 649,522,041.89 and 126,234,620.25 is: 189,383,502.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,942,507.38 : 649,522,041.89 = 126,234,620.25 : x
  2. Step 2: Convert to fraction form
    432,942,507.38/649,522,041.89 = 126,234,620.25/x
  3. Step 3: Cross multiply
    432,942,507.38x = 649,522,041.89 × 126,234,620.25
  4. Step 4: Simplify right side
    432,942,507.38x = 81,992,168,301,357,568
  5. Step 5: Solve for x
    x = 81,992,168,301,357,568/432,942,507.38
  6. Step 6: Final answer
    x = 189,383,502.21

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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.