Home / 132,155,999.40-198,233,999.10-80,499,934.20

Finding the Fourth Proportional to 132,155,999.40, 198,233,999.10 and 80,499,934.20

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Solution

The fourth proportional to 132,155,999.40, 198,233,999.10 and 80,499,934.20 is: 120,749,901.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,155,999.40 : 198,233,999.10 = 80,499,934.20 : x
  2. Step 2: Convert to fraction form
    132,155,999.40/198,233,999.10 = 80,499,934.20/x
  3. Step 3: Cross multiply
    132,155,999.40x = 198,233,999.10 × 80,499,934.20
  4. Step 4: Simplify right side
    132,155,999.40x = 15,957,823,883,752,860
  5. Step 5: Solve for x
    x = 15,957,823,883,752,860/132,155,999.40
  6. Step 6: Final answer
    x = 120,749,901.30

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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.