Home / 198,004,511.20-297,454,664.40-137,538,335.20

Finding the Fourth Proportional to 198,004,511.20, 297,454,664.40 and 137,538,335.20

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Solution

The fourth proportional to 198,004,511.20, 297,454,664.40 and 137,538,335.20 is: 206,618,622.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,004,511.20 : 297,454,664.40 = 137,538,335.20 : x
  2. Step 2: Convert to fraction form
    198,004,511.20/297,454,664.40 = 137,538,335.20/x
  3. Step 3: Cross multiply
    198,004,511.20x = 297,454,664.40 × 137,538,335.20
  4. Step 4: Simplify right side
    198,004,511.20x = 40,911,419,339,050,704
  5. Step 5: Solve for x
    x = 40,911,419,339,050,704/198,004,511.20
  6. Step 6: Final answer
    x = 206,618,622.43

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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.