Home / 15,481,399.16-21,364,385.76-8,512,515.12

Finding the Fourth Proportional to 15,481,399.16, 21,364,385.76 and 8,512,515.12

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Solution

The fourth proportional to 15,481,399.16, 21,364,385.76 and 8,512,515.12 is: 11,747,301.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,481,399.16 : 21,364,385.76 = 8,512,515.12 : x
  2. Step 2: Convert to fraction form
    15,481,399.16/21,364,385.76 = 8,512,515.12/x
  3. Step 3: Cross multiply
    15,481,399.16x = 21,364,385.76 × 8,512,515.12
  4. Step 4: Simplify right side
    15,481,399.16x = 181,864,656,753,371.97
  5. Step 5: Solve for x
    x = 181,864,656,753,371.97/15,481,399.16
  6. Step 6: Final answer
    x = 11,747,301.06

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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.