Home / 12,805,578.09-17,671,505.13-7,647,943.23

Finding the Fourth Proportional to 12,805,578.09, 17,671,505.13 and 7,647,943.23

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Solution

The fourth proportional to 12,805,578.09, 17,671,505.13 and 7,647,943.23 is: 10,554,046.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,805,578.09 : 17,671,505.13 = 7,647,943.23 : x
  2. Step 2: Convert to fraction form
    12,805,578.09/17,671,505.13 = 7,647,943.23/x
  3. Step 3: Cross multiply
    12,805,578.09x = 17,671,505.13 × 7,647,943.23
  4. Step 4: Simplify right side
    12,805,578.09x = 135,150,668,022,893.77
  5. Step 5: Solve for x
    x = 135,150,668,022,893.77/12,805,578.09
  6. Step 6: Final answer
    x = 10,554,046.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.