Home / 146,664,191.20-219,996,286.80-78,639,743.20

Finding the Fourth Proportional to 146,664,191.20, 219,996,286.80 and 78,639,743.20

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Solution

The fourth proportional to 146,664,191.20, 219,996,286.80 and 78,639,743.20 is: 117,959,614.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,664,191.20 : 219,996,286.80 = 78,639,743.20 : x
  2. Step 2: Convert to fraction form
    146,664,191.20/219,996,286.80 = 78,639,743.20/x
  3. Step 3: Cross multiply
    146,664,191.20x = 219,996,286.80 × 78,639,743.20
  4. Step 4: Simplify right side
    146,664,191.20x = 17,300,451,498,905,552
  5. Step 5: Solve for x
    x = 17,300,451,498,905,552/146,664,191.20
  6. Step 6: Final answer
    x = 117,959,614.80

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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.