Home / 13,541,443.08-18,687,189.42-7,740,349.38

Finding the Fourth Proportional to 13,541,443.08, 18,687,189.42 and 7,740,349.38

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Solution

The fourth proportional to 13,541,443.08, 18,687,189.42 and 7,740,349.38 is: 10,681,680.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541,443.08 : 18,687,189.42 = 7,740,349.38 : x
  2. Step 2: Convert to fraction form
    13,541,443.08/18,687,189.42 = 7,740,349.38/x
  3. Step 3: Cross multiply
    13,541,443.08x = 18,687,189.42 × 7,740,349.38
  4. Step 4: Simplify right side
    13,541,443.08x = 144,645,375,041,039.56
  5. Step 5: Solve for x
    x = 144,645,375,041,039.56/13,541,443.08
  6. Step 6: Final answer
    x = 10,681,680.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.