Home / 21,186,144.24-31,765,540.31-9,063,515.76

Finding the Fourth Proportional to 21,186,144.24, 31,765,540.31 and 9,063,515.76

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Solution

The fourth proportional to 21,186,144.24, 31,765,540.31 and 9,063,515.76 is: 13,589,422.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186,144.24 : 31,765,540.31 = 9,063,515.76 : x
  2. Step 2: Convert to fraction form
    21,186,144.24/31,765,540.31 = 9,063,515.76/x
  3. Step 3: Cross multiply
    21,186,144.24x = 31,765,540.31 × 9,063,515.76
  4. Step 4: Simplify right side
    21,186,144.24x = 287,907,475,145,123.31
  5. Step 5: Solve for x
    x = 287,907,475,145,123.31/21,186,144.24
  6. Step 6: Final answer
    x = 13,589,422.97

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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.