Home / 15,115,196.88-20,858,217.84-8,587,964.16

Finding the Fourth Proportional to 15,115,196.88, 20,858,217.84 and 8,587,964.16

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Solution

The fourth proportional to 15,115,196.88, 20,858,217.84 and 8,587,964.16 is: 11,850,962.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,115,196.88 : 20,858,217.84 = 8,587,964.16 : x
  2. Step 2: Convert to fraction form
    15,115,196.88/20,858,217.84 = 8,587,964.16/x
  3. Step 3: Cross multiply
    15,115,196.88x = 20,858,217.84 × 8,587,964.16
  4. Step 4: Simplify right side
    15,115,196.88x = 179,129,627,251,392.62
  5. Step 5: Solve for x
    x = 179,129,627,251,392.62/15,115,196.88
  6. Step 6: Final answer
    x = 11,850,962.23

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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.