Home / 485,117,200.20-727,675,800.30-178,345,835.40

Finding the Fourth Proportional to 485,117,200.20, 727,675,800.30 and 178,345,835.40

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Solution

The fourth proportional to 485,117,200.20, 727,675,800.30 and 178,345,835.40 is: 267,518,753.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,117,200.20 : 727,675,800.30 = 178,345,835.40 : x
  2. Step 2: Convert to fraction form
    485,117,200.20/727,675,800.30 = 178,345,835.40/x
  3. Step 3: Cross multiply
    485,117,200.20x = 727,675,800.30 × 178,345,835.40
  4. Step 4: Simplify right side
    485,117,200.20x = 129,777,948,504,867,072
  5. Step 5: Solve for x
    x = 129,777,948,504,867,072/485,117,200.20
  6. Step 6: Final answer
    x = 267,518,753.10

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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.