Home / 18,871,229.80-28,264,854.30-15,511,997.80

Finding the Fourth Proportional to 18,871,229.80, 28,264,854.30 and 15,511,997.80

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Solution

The fourth proportional to 18,871,229.80, 28,264,854.30 and 15,511,997.80 is: 23,233,480.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,871,229.80 : 28,264,854.30 = 15,511,997.80 : x
  2. Step 2: Convert to fraction form
    18,871,229.80/28,264,854.30 = 15,511,997.80/x
  3. Step 3: Cross multiply
    18,871,229.80x = 28,264,854.30 × 15,511,997.80
  4. Step 4: Simplify right side
    18,871,229.80x = 438,444,357,718,920.56
  5. Step 5: Solve for x
    x = 438,444,357,718,920.56/18,871,229.80
  6. Step 6: Final answer
    x = 23,233,480.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.