Home / 198,004,629.20-297,454,841.40-137,538,453.20

Finding the Fourth Proportional to 198,004,629.20, 297,454,841.40 and 137,538,453.20

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Solution

The fourth proportional to 198,004,629.20, 297,454,841.40 and 137,538,453.20 is: 206,618,799.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,004,629.20 : 297,454,841.40 = 137,538,453.20 : x
  2. Step 2: Convert to fraction form
    198,004,629.20/297,454,841.40 = 137,538,453.20/x
  3. Step 3: Cross multiply
    198,004,629.20x = 297,454,841.40 × 137,538,453.20
  4. Step 4: Simplify right side
    198,004,629.20x = 40,911,478,783,007,312
  5. Step 5: Solve for x
    x = 40,911,478,783,007,312/198,004,629.20
  6. Step 6: Final answer
    x = 206,618,799.51

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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.