Home / 132,192,004.20-198,288,006.30-83,512,008.60

Finding the Fourth Proportional to 132,192,004.20, 198,288,006.30 and 83,512,008.60

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Solution

The fourth proportional to 132,192,004.20, 198,288,006.30 and 83,512,008.60 is: 125,268,012.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,192,004.20 : 198,288,006.30 = 83,512,008.60 : x
  2. Step 2: Convert to fraction form
    132,192,004.20/198,288,006.30 = 83,512,008.60/x
  3. Step 3: Cross multiply
    132,192,004.20x = 198,288,006.30 × 83,512,008.60
  4. Step 4: Simplify right side
    132,192,004.20x = 16,559,429,687,402,454
  5. Step 5: Solve for x
    x = 16,559,429,687,402,454/132,192,004.20
  6. Step 6: Final answer
    x = 125,268,012.90

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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.