Home / 132,191,998.20-198,287,997.30-80,459,825.40

Finding the Fourth Proportional to 132,191,998.20, 198,287,997.30 and 80,459,825.40

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Solution

The fourth proportional to 132,191,998.20, 198,287,997.30 and 80,459,825.40 is: 120,689,738.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,191,998.20 : 198,287,997.30 = 80,459,825.40 : x
  2. Step 2: Convert to fraction form
    132,191,998.20/198,287,997.30 = 80,459,825.40/x
  3. Step 3: Cross multiply
    132,191,998.20x = 198,287,997.30 × 80,459,825.40
  4. Step 4: Simplify right side
    132,191,998.20x = 15,954,217,641,673,674
  5. Step 5: Solve for x
    x = 15,954,217,641,673,674/132,191,998.20
  6. Step 6: Final answer
    x = 120,689,738.10

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1.5x scale

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.