Home / 18,981,080.67-28,517,042.46-12,170,996.35

Finding the Fourth Proportional to 18,981,080.67, 28,517,042.46 and 12,170,996.35

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Solution

The fourth proportional to 18,981,080.67, 28,517,042.46 and 12,170,996.35 is: 18,285,619.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,981,080.67 : 28,517,042.46 = 12,170,996.35 : x
  2. Step 2: Convert to fraction form
    18,981,080.67/28,517,042.46 = 12,170,996.35/x
  3. Step 3: Cross multiply
    18,981,080.67x = 28,517,042.46 × 12,170,996.35
  4. Step 4: Simplify right side
    18,981,080.67x = 347,080,819,764,747.62
  5. Step 5: Solve for x
    x = 347,080,819,764,747.62/18,981,080.67
  6. Step 6: Final answer
    x = 18,285,619.55

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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.