Home / 198,612,010.80-297,918,016.20-89,489,458.80

Finding the Fourth Proportional to 198,612,010.80, 297,918,016.20 and 89,489,458.80

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Solution

The fourth proportional to 198,612,010.80, 297,918,016.20 and 89,489,458.80 is: 134,234,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,612,010.80 : 297,918,016.20 = 89,489,458.80 : x
  2. Step 2: Convert to fraction form
    198,612,010.80/297,918,016.20 = 89,489,458.80/x
  3. Step 3: Cross multiply
    198,612,010.80x = 297,918,016.20 × 89,489,458.80
  4. Step 4: Simplify right side
    198,612,010.80x = 26,660,522,036,507,632
  5. Step 5: Solve for x
    x = 26,660,522,036,507,632/198,612,010.80
  6. Step 6: Final answer
    x = 134,234,188.20

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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.