Home / 485,117,201.20-727,675,801.80-178,345,836.40

Finding the Fourth Proportional to 485,117,201.20, 727,675,801.80 and 178,345,836.40

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Solution

The fourth proportional to 485,117,201.20, 727,675,801.80 and 178,345,836.40 is: 267,518,754.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,117,201.20 : 727,675,801.80 = 178,345,836.40 : x
  2. Step 2: Convert to fraction form
    485,117,201.20/727,675,801.80 = 178,345,836.40/x
  3. Step 3: Cross multiply
    485,117,201.20x = 727,675,801.80 × 178,345,836.40
  4. Step 4: Simplify right side
    485,117,201.20x = 129,777,949,500,061,616
  5. Step 5: Solve for x
    x = 129,777,949,500,061,616/485,117,201.20
  6. Step 6: Final answer
    x = 267,518,754.60

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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.