Home / 198,480,091.20-297,808,610.40-90,719,246.40

Finding the Fourth Proportional to 198,480,091.20, 297,808,610.40 and 90,719,246.40

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Solution

The fourth proportional to 198,480,091.20, 297,808,610.40 and 90,719,246.40 is: 136,119,308.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,480,091.20 : 297,808,610.40 = 90,719,246.40 : x
  2. Step 2: Convert to fraction form
    198,480,091.20/297,808,610.40 = 90,719,246.40/x
  3. Step 3: Cross multiply
    198,480,091.20x = 297,808,610.40 × 90,719,246.40
  4. Step 4: Simplify right side
    198,480,091.20x = 27,016,972,706,919,204
  5. Step 5: Solve for x
    x = 27,016,972,706,919,204/198,480,091.20
  6. Step 6: Final answer
    x = 136,119,308.21

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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.