Home / 18,872,139.30-28,266,218.55-15,512,907.30

Finding the Fourth Proportional to 18,872,139.30, 28,266,218.55 and 15,512,907.30

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Solution

The fourth proportional to 18,872,139.30, 28,266,218.55 and 15,512,907.30 is: 23,234,844.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,872,139.30 : 28,266,218.55 = 15,512,907.30 : x
  2. Step 2: Convert to fraction form
    18,872,139.30/28,266,218.55 = 15,512,907.30/x
  3. Step 3: Cross multiply
    18,872,139.30x = 28,266,218.55 × 15,512,907.30
  4. Step 4: Simplify right side
    18,872,139.30x = 438,491,228,087,690.44
  5. Step 5: Solve for x
    x = 438,491,228,087,690.44/18,872,139.30
  6. Step 6: Final answer
    x = 23,234,844.82

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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.