Home / 13,851,747.28-19,115,380.92-7,740,175.78

Finding the Fourth Proportional to 13,851,747.28, 19,115,380.92 and 7,740,175.78

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Solution

The fourth proportional to 13,851,747.28, 19,115,380.92 and 7,740,175.78 is: 10,681,425.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851,747.28 : 19,115,380.92 = 7,740,175.78 : x
  2. Step 2: Convert to fraction form
    13,851,747.28/19,115,380.92 = 7,740,175.78/x
  3. Step 3: Cross multiply
    13,851,747.28x = 19,115,380.92 × 7,740,175.78
  4. Step 4: Simplify right side
    13,851,747.28x = 147,956,408,422,458.12
  5. Step 5: Solve for x
    x = 147,956,408,422,458.12/13,851,747.28
  6. Step 6: Final answer
    x = 10,681,425.63

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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.