Home / 442,674,821.60-664,111,765.20-135,981,087.20

Finding the Fourth Proportional to 442,674,821.60, 664,111,765.20 and 135,981,087.20

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Solution

The fourth proportional to 442,674,821.60, 664,111,765.20 and 135,981,087.20 is: 204,002,205.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,674,821.60 : 664,111,765.20 = 135,981,087.20 : x
  2. Step 2: Convert to fraction form
    442,674,821.60/664,111,765.20 = 135,981,087.20/x
  3. Step 3: Cross multiply
    442,674,821.60x = 664,111,765.20 × 135,981,087.20
  4. Step 4: Simplify right side
    442,674,821.60x = 90,306,639,854,207,120
  5. Step 5: Solve for x
    x = 90,306,639,854,207,120/442,674,821.60
  6. Step 6: Final answer
    x = 204,002,205.34

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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.