Home / 12,841,528.72-17,720,839.11-7,040,183.44

Finding the Fourth Proportional to 12,841,528.72, 17,720,839.11 and 7,040,183.44

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Solution

The fourth proportional to 12,841,528.72, 17,720,839.11 and 7,040,183.44 is: 9,715,195.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,841,528.72 : 17,720,839.11 = 7,040,183.44 : x
  2. Step 2: Convert to fraction form
    12,841,528.72/17,720,839.11 = 7,040,183.44/x
  3. Step 3: Cross multiply
    12,841,528.72x = 17,720,839.11 × 7,040,183.44
  4. Step 4: Simplify right side
    12,841,528.72x = 124,757,958,045,126.34
  5. Step 5: Solve for x
    x = 124,757,958,045,126.34/12,841,528.72
  6. Step 6: Final answer
    x = 9,715,195.19

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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.