Home / 12,841,486.47-17,720,781.08-7,040,140.92

Finding the Fourth Proportional to 12,841,486.47, 17,720,781.08 and 7,040,140.92

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Solution

The fourth proportional to 12,841,486.47, 17,720,781.08 and 7,040,140.92 is: 9,715,136.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,841,486.47 : 17,720,781.08 = 7,040,140.92 : x
  2. Step 2: Convert to fraction form
    12,841,486.47/17,720,781.08 = 7,040,140.92/x
  3. Step 3: Cross multiply
    12,841,486.47x = 17,720,781.08 × 7,040,140.92
  4. Step 4: Simplify right side
    12,841,486.47x = 124,756,795,980,469.08
  5. Step 5: Solve for x
    x = 124,756,795,980,469.08/12,841,486.47
  6. Step 6: Final answer
    x = 9,715,136.66

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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.