Home / 132,120,007.20-198,180,010.80-120,215,728.80

Finding the Fourth Proportional to 132,120,007.20, 198,180,010.80 and 120,215,728.80

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Solution

The fourth proportional to 132,120,007.20, 198,180,010.80 and 120,215,728.80 is: 180,323,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,120,007.20 : 198,180,010.80 = 120,215,728.80 : x
  2. Step 2: Convert to fraction form
    132,120,007.20/198,180,010.80 = 120,215,728.80/x
  3. Step 3: Cross multiply
    132,120,007.20x = 198,180,010.80 × 120,215,728.80
  4. Step 4: Simplify right side
    132,120,007.20x = 23,824,354,431,913,872
  5. Step 5: Solve for x
    x = 23,824,354,431,913,872/132,120,007.20
  6. Step 6: Final answer
    x = 180,323,593.20

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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.