Home / 390,207,376.92-585,311,318.10-99,096,331.80

Finding the Fourth Proportional to 390,207,376.92, 585,311,318.10 and 99,096,331.80

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Solution

The fourth proportional to 390,207,376.92, 585,311,318.10 and 99,096,331.80 is: 148,644,561.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,207,376.92 : 585,311,318.10 = 99,096,331.80 : x
  2. Step 2: Convert to fraction form
    390,207,376.92/585,311,318.10 = 99,096,331.80/x
  3. Step 3: Cross multiply
    390,207,376.92x = 585,311,318.10 × 99,096,331.80
  4. Step 4: Simplify right side
    390,207,376.92x = 58,002,204,584,732,944
  5. Step 5: Solve for x
    x = 58,002,204,584,732,944/390,207,376.92
  6. Step 6: Final answer
    x = 148,644,561.88

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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.