Home / 13,115,199.28-18,098,939.82-7,313,987.38

Finding the Fourth Proportional to 13,115,199.28, 18,098,939.82 and 7,313,987.38

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Solution

The fourth proportional to 13,115,199.28, 18,098,939.82 and 7,313,987.38 is: 10,093,282.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115,199.28 : 18,098,939.82 = 7,313,987.38 : x
  2. Step 2: Convert to fraction form
    13,115,199.28/18,098,939.82 = 7,313,987.38/x
  3. Step 3: Cross multiply
    13,115,199.28x = 18,098,939.82 × 7,313,987.38
  4. Step 4: Simplify right side
    13,115,199.28x = 132,375,417,434,859.47
  5. Step 5: Solve for x
    x = 132,375,417,434,859.47/13,115,199.28
  6. Step 6: Final answer
    x = 10,093,282.96

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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.