Home / 72,615,976.20-108,923,964.30-67,073,243.40

Finding the Fourth Proportional to 72,615,976.20, 108,923,964.30 and 67,073,243.40

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Solution

The fourth proportional to 72,615,976.20, 108,923,964.30 and 67,073,243.40 is: 100,609,865.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,615,976.20 : 108,923,964.30 = 67,073,243.40 : x
  2. Step 2: Convert to fraction form
    72,615,976.20/108,923,964.30 = 67,073,243.40/x
  3. Step 3: Cross multiply
    72,615,976.20x = 108,923,964.30 × 67,073,243.40
  4. Step 4: Simplify right side
    72,615,976.20x = 7,305,883,569,586,810
  5. Step 5: Solve for x
    x = 7,305,883,569,586,810/72,615,976.20
  6. Step 6: Final answer
    x = 100,609,865.10

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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.