Home / 454,681,928.20-682,022,892.32-408,765,425.80

Finding the Fourth Proportional to 454,681,928.20, 682,022,892.32 and 408,765,425.80

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Solution

The fourth proportional to 454,681,928.20, 682,022,892.32 and 408,765,425.80 is: 613,148,138.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,681,928.20 : 682,022,892.32 = 408,765,425.80 : x
  2. Step 2: Convert to fraction form
    454,681,928.20/682,022,892.32 = 408,765,425.80/x
  3. Step 3: Cross multiply
    454,681,928.20x = 682,022,892.32 × 408,765,425.80
  4. Step 4: Simplify right side
    454,681,928.20x = 278,787,377,984,532,384
  5. Step 5: Solve for x
    x = 278,787,377,984,532,384/454,681,928.20
  6. Step 6: Final answer
    x = 613,148,138.72

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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.