Home / 198,263,023.40-297,279,061.50-76,952,757.80

Finding the Fourth Proportional to 198,263,023.40, 297,279,061.50 and 76,952,757.80

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Solution

The fourth proportional to 198,263,023.40, 297,279,061.50 and 76,952,757.80 is: 115,384,317.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,263,023.40 : 297,279,061.50 = 76,952,757.80 : x
  2. Step 2: Convert to fraction form
    198,263,023.40/297,279,061.50 = 76,952,757.80/x
  3. Step 3: Cross multiply
    198,263,023.40x = 297,279,061.50 × 76,952,757.80
  4. Step 4: Simplify right side
    198,263,023.40x = 22,876,443,618,620,804
  5. Step 5: Solve for x
    x = 22,876,443,618,620,804/198,263,023.40
  6. Step 6: Final answer
    x = 115,384,317.39

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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.