Home / 12,170,201.80-18,219,873.30-11,815,907.80

Finding the Fourth Proportional to 12,170,201.80, 18,219,873.30 and 11,815,907.80

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Solution

The fourth proportional to 12,170,201.80, 18,219,873.30 and 11,815,907.80 is: 17,689,463.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170,201.80 : 18,219,873.30 = 11,815,907.80 : x
  2. Step 2: Convert to fraction form
    12,170,201.80/18,219,873.30 = 11,815,907.80/x
  3. Step 3: Cross multiply
    12,170,201.80x = 18,219,873.30 × 11,815,907.80
  4. Step 4: Simplify right side
    12,170,201.80x = 215,284,343,040,481.75
  5. Step 5: Solve for x
    x = 215,284,343,040,481.75/12,170,201.80
  6. Step 6: Final answer
    x = 17,689,463.71

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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.