Home / 20,687,231.44-28,566,431.76-12,965,546.80

Finding the Fourth Proportional to 20,687,231.44, 28,566,431.76 and 12,965,546.80

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Solution

The fourth proportional to 20,687,231.44, 28,566,431.76 and 12,965,546.80 is: 17,903,768.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,687,231.44 : 28,566,431.76 = 12,965,546.80 : x
  2. Step 2: Convert to fraction form
    20,687,231.44/28,566,431.76 = 12,965,546.80/x
  3. Step 3: Cross multiply
    20,687,231.44x = 28,566,431.76 × 12,965,546.80
  4. Step 4: Simplify right side
    20,687,231.44x = 370,379,407,893,286.44
  5. Step 5: Solve for x
    x = 370,379,407,893,286.44/20,687,231.44
  6. Step 6: Final answer
    x = 17,903,768.76

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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.