Home / 198,581,334.40-297,872,001.60-137,359,331.20

Finding the Fourth Proportional to 198,581,334.40, 297,872,001.60 and 137,359,331.20

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Solution

The fourth proportional to 198,581,334.40, 297,872,001.60 and 137,359,331.20 is: 206,038,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,581,334.40 : 297,872,001.60 = 137,359,331.20 : x
  2. Step 2: Convert to fraction form
    198,581,334.40/297,872,001.60 = 137,359,331.20/x
  3. Step 3: Cross multiply
    198,581,334.40x = 297,872,001.60 × 137,359,331.20
  4. Step 4: Simplify right side
    198,581,334.40x = 40,915,498,922,981,328
  5. Step 5: Solve for x
    x = 40,915,498,922,981,328/198,581,334.40
  6. Step 6: Final answer
    x = 206,038,996.80

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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.