Home / 13,991,137.31-20,970,786.28-8,514,152.41

Finding the Fourth Proportional to 13,991,137.31, 20,970,786.28 and 8,514,152.41

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Solution

The fourth proportional to 13,991,137.31, 20,970,786.28 and 8,514,152.41 is: 12,761,540.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991,137.31 : 20,970,786.28 = 8,514,152.41 : x
  2. Step 2: Convert to fraction form
    13,991,137.31/20,970,786.28 = 8,514,152.41/x
  3. Step 3: Cross multiply
    13,991,137.31x = 20,970,786.28 × 8,514,152.41
  4. Step 4: Simplify right side
    13,991,137.31x = 178,548,470,545,456.94
  5. Step 5: Solve for x
    x = 178,548,470,545,456.94/13,991,137.31
  6. Step 6: Final answer
    x = 12,761,540.87

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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.