Home / 18,705,481.28-28,059,310.56-5,243,359.04

Finding the Fourth Proportional to 18,705,481.28, 28,059,310.56 and 5,243,359.04

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Solution

The fourth proportional to 18,705,481.28, 28,059,310.56 and 5,243,359.04 is: 7,865,343.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,705,481.28 : 28,059,310.56 = 5,243,359.04 : x
  2. Step 2: Convert to fraction form
    18,705,481.28/28,059,310.56 = 5,243,359.04/x
  3. Step 3: Cross multiply
    18,705,481.28x = 28,059,310.56 × 5,243,359.04
  4. Step 4: Simplify right side
    18,705,481.28x = 147,125,039,680,943.47
  5. Step 5: Solve for x
    x = 147,125,039,680,943.47/18,705,481.28
  6. Step 6: Final answer
    x = 7,865,343.72

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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.