Home / 15,131,400.76-20,856,939.90-10,234,837.16

Finding the Fourth Proportional to 15,131,400.76, 20,856,939.90 and 10,234,837.16

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Solution

The fourth proportional to 15,131,400.76, 20,856,939.90 and 10,234,837.16 is: 14,107,575.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,131,400.76 : 20,856,939.90 = 10,234,837.16 : x
  2. Step 2: Convert to fraction form
    15,131,400.76/20,856,939.90 = 10,234,837.16/x
  3. Step 3: Cross multiply
    15,131,400.76x = 20,856,939.90 × 10,234,837.16
  4. Step 4: Simplify right side
    15,131,400.76x = 213,467,383,532,406.66
  5. Step 5: Solve for x
    x = 213,467,383,532,406.66/15,131,400.76
  6. Step 6: Final answer
    x = 14,107,575.82

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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.