Home / 402,951,957.60-604,278,637.20-130,331,618.40

Finding the Fourth Proportional to 402,951,957.60, 604,278,637.20 and 130,331,618.40

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Solution

The fourth proportional to 402,951,957.60, 604,278,637.20 and 130,331,618.40 is: 195,449,137.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,951,957.60 : 604,278,637.20 = 130,331,618.40 : x
  2. Step 2: Convert to fraction form
    402,951,957.60/604,278,637.20 = 130,331,618.40/x
  3. Step 3: Cross multiply
    402,951,957.60x = 604,278,637.20 × 130,331,618.40
  4. Step 4: Simplify right side
    402,951,957.60x = 78,756,612,750,822,448
  5. Step 5: Solve for x
    x = 78,756,612,750,822,448/402,951,957.60
  6. Step 6: Final answer
    x = 195,449,137.96

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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.