Home / 132,206,687.20-198,310,030.80-80,474,514.40

Finding the Fourth Proportional to 132,206,687.20, 198,310,030.80 and 80,474,514.40

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Solution

The fourth proportional to 132,206,687.20, 198,310,030.80 and 80,474,514.40 is: 120,711,771.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,206,687.20 : 198,310,030.80 = 80,474,514.40 : x
  2. Step 2: Convert to fraction form
    132,206,687.20/198,310,030.80 = 80,474,514.40/x
  3. Step 3: Cross multiply
    132,206,687.20x = 198,310,030.80 × 80,474,514.40
  4. Step 4: Simplify right side
    132,206,687.20x = 15,958,903,429,279,046
  5. Step 5: Solve for x
    x = 15,958,903,429,279,046/132,206,687.20
  6. Step 6: Final answer
    x = 120,711,771.60

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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.