Home / 15,262,805.80-21,058,078.98-9,149,003.56

Finding the Fourth Proportional to 15,262,805.80, 21,058,078.98 and 9,149,003.56

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Solution

The fourth proportional to 15,262,805.80, 21,058,078.98 and 9,149,003.56 is: 12,622,871.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,262,805.80 : 21,058,078.98 = 9,149,003.56 : x
  2. Step 2: Convert to fraction form
    15,262,805.80/21,058,078.98 = 9,149,003.56/x
  3. Step 3: Cross multiply
    15,262,805.80x = 21,058,078.98 × 9,149,003.56
  4. Step 4: Simplify right side
    15,262,805.80x = 192,660,439,554,781.19
  5. Step 5: Solve for x
    x = 192,660,439,554,781.19/15,262,805.80
  6. Step 6: Final answer
    x = 12,622,871.71

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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.