Home / 20,644,076.32-28,487,211.52-11,476,160.80

Finding the Fourth Proportional to 20,644,076.32, 28,487,211.52 and 11,476,160.80

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Solution

The fourth proportional to 20,644,076.32, 28,487,211.52 and 11,476,160.80 is: 15,836,204.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,644,076.32 : 28,487,211.52 = 11,476,160.80 : x
  2. Step 2: Convert to fraction form
    20,644,076.32/28,487,211.52 = 11,476,160.80/x
  3. Step 3: Cross multiply
    20,644,076.32x = 28,487,211.52 × 11,476,160.80
  4. Step 4: Simplify right side
    20,644,076.32x = 326,923,820,147,132.44
  5. Step 5: Solve for x
    x = 326,923,820,147,132.44/20,644,076.32
  6. Step 6: Final answer
    x = 15,836,204.78

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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.