Home / 402,951,943.60-604,278,616.20-130,331,604.40

Finding the Fourth Proportional to 402,951,943.60, 604,278,616.20 and 130,331,604.40

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Solution

The fourth proportional to 402,951,943.60, 604,278,616.20 and 130,331,604.40 is: 195,449,116.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,951,943.60 : 604,278,616.20 = 130,331,604.40 : x
  2. Step 2: Convert to fraction form
    402,951,943.60/604,278,616.20 = 130,331,604.40/x
  3. Step 3: Cross multiply
    402,951,943.60x = 604,278,616.20 × 130,331,604.40
  4. Step 4: Simplify right side
    402,951,943.60x = 78,756,601,553,957,840
  5. Step 5: Solve for x
    x = 78,756,601,553,957,840/402,951,943.60
  6. Step 6: Final answer
    x = 195,449,116.96

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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.