Home / 15,149,848.92-20,906,468.10-8,274,358.68

Finding the Fourth Proportional to 15,149,848.92, 20,906,468.10 and 8,274,358.68

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Solution

The fourth proportional to 15,149,848.92, 20,906,468.10 and 8,274,358.68 is: 11,418,438.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,149,848.92 : 20,906,468.10 = 8,274,358.68 : x
  2. Step 2: Convert to fraction form
    15,149,848.92/20,906,468.10 = 8,274,358.68/x
  3. Step 3: Cross multiply
    15,149,848.92x = 20,906,468.10 × 8,274,358.68
  4. Step 4: Simplify right side
    15,149,848.92x = 172,987,615,791,378.12
  5. Step 5: Solve for x
    x = 172,987,615,791,378.12/15,149,848.92
  6. Step 6: Final answer
    x = 11,418,438.34

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Double scale
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1.5x scale

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.