Home / 31,969,512.30-47,933,650.44-12,540,701.42

Finding the Fourth Proportional to 31,969,512.30, 47,933,650.44 and 12,540,701.42

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Solution

The fourth proportional to 31,969,512.30, 47,933,650.44 and 12,540,701.42 is: 18,802,964.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,969,512.30 : 47,933,650.44 = 12,540,701.42 : x
  2. Step 2: Convert to fraction form
    31,969,512.30/47,933,650.44 = 12,540,701.42/x
  3. Step 3: Cross multiply
    31,969,512.30x = 47,933,650.44 × 12,540,701.42
  4. Step 4: Simplify right side
    31,969,512.30x = 601,121,597,908,720.62
  5. Step 5: Solve for x
    x = 601,121,597,908,720.62/31,969,512.30
  6. Step 6: Final answer
    x = 18,802,964.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.