Home / 198,126,964.80-297,225,876.60-83,123,132.40

Finding the Fourth Proportional to 198,126,964.80, 297,225,876.60 and 83,123,132.40

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Solution

The fourth proportional to 198,126,964.80, 297,225,876.60 and 83,123,132.40 is: 124,699,562.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,126,964.80 : 297,225,876.60 = 83,123,132.40 : x
  2. Step 2: Convert to fraction form
    198,126,964.80/297,225,876.60 = 83,123,132.40/x
  3. Step 3: Cross multiply
    198,126,964.80x = 297,225,876.60 × 83,123,132.40
  4. Step 4: Simplify right side
    198,126,964.80x = 24,706,345,893,327,864
  5. Step 5: Solve for x
    x = 24,706,345,893,327,864/198,126,964.80
  6. Step 6: Final answer
    x = 124,699,562.82

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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.