Home / 323,847,121.20-485,053,236.45-280,800,400.20

Finding the Fourth Proportional to 323,847,121.20, 485,053,236.45 and 280,800,400.20

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Solution

The fourth proportional to 323,847,121.20, 485,053,236.45 and 280,800,400.20 is: 420,578,519.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,847,121.20 : 485,053,236.45 = 280,800,400.20 : x
  2. Step 2: Convert to fraction form
    323,847,121.20/485,053,236.45 = 280,800,400.20/x
  3. Step 3: Cross multiply
    323,847,121.20x = 485,053,236.45 × 280,800,400.20
  4. Step 4: Simplify right side
    323,847,121.20x = 136,203,142,913,465,216
  5. Step 5: Solve for x
    x = 136,203,142,913,465,216/323,847,121.20
  6. Step 6: Final answer
    x = 420,578,519.92

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.