Home / 485,101,159.20-727,651,738.80-178,329,794.40

Finding the Fourth Proportional to 485,101,159.20, 727,651,738.80 and 178,329,794.40

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Solution

The fourth proportional to 485,101,159.20, 727,651,738.80 and 178,329,794.40 is: 267,494,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,101,159.20 : 727,651,738.80 = 178,329,794.40 : x
  2. Step 2: Convert to fraction form
    485,101,159.20/727,651,738.80 = 178,329,794.40/x
  3. Step 3: Cross multiply
    485,101,159.20x = 727,651,738.80 × 178,329,794.40
  4. Step 4: Simplify right side
    485,101,159.20x = 129,761,984,975,006,496
  5. Step 5: Solve for x
    x = 129,761,984,975,006,496/485,101,159.20
  6. Step 6: Final answer
    x = 267,494,691.60

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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.