Home / 402,951,985.60-604,278,679.20-130,331,646.40

Finding the Fourth Proportional to 402,951,985.60, 604,278,679.20 and 130,331,646.40

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Solution

The fourth proportional to 402,951,985.60, 604,278,679.20 and 130,331,646.40 is: 195,449,179.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,951,985.60 : 604,278,679.20 = 130,331,646.40 : x
  2. Step 2: Convert to fraction form
    402,951,985.60/604,278,679.20 = 130,331,646.40/x
  3. Step 3: Cross multiply
    402,951,985.60x = 604,278,679.20 × 130,331,646.40
  4. Step 4: Simplify right side
    402,951,985.60x = 78,756,635,144,553,440
  5. Step 5: Solve for x
    x = 78,756,635,144,553,440/402,951,985.60
  6. Step 6: Final answer
    x = 195,449,179.95

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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.