Home / 485,162,807.60-727,744,211.40-472,408,223.60

Finding the Fourth Proportional to 485,162,807.60, 727,744,211.40 and 472,408,223.60

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Solution

The fourth proportional to 485,162,807.60, 727,744,211.40 and 472,408,223.60 is: 708,612,335.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,162,807.60 : 727,744,211.40 = 472,408,223.60 : x
  2. Step 2: Convert to fraction form
    485,162,807.60/727,744,211.40 = 472,408,223.60/x
  3. Step 3: Cross multiply
    485,162,807.60x = 727,744,211.40 × 472,408,223.60
  4. Step 4: Simplify right side
    485,162,807.60x = 343,792,350,142,656,896
  5. Step 5: Solve for x
    x = 343,792,350,142,656,896/485,162,807.60
  6. Step 6: Final answer
    x = 708,612,335.40

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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.