Home / 15,131,395.76-20,856,933-10,234,832.15

Finding the Fourth Proportional to 15,131,395.76, 20,856,933 and 10,234,832.15

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Solution

The fourth proportional to 15,131,395.76, 20,856,933 and 10,234,832.15 is: 14,107,568.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,131,395.76 : 20,856,933 = 10,234,832.15 : x
  2. Step 2: Convert to fraction form
    15,131,395.76/20,856,933 = 10,234,832.15/x
  3. Step 3: Cross multiply
    15,131,395.76x = 20,856,933 × 10,234,832.15
  4. Step 4: Simplify right side
    15,131,395.76x = 213,467,208,470,938.28
  5. Step 5: Solve for x
    x = 213,467,208,470,938.28/15,131,395.76
  6. Step 6: Final answer
    x = 14,107,568.92

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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.