Home / 12,543,891.31-18,815,840.21-3,568,443.31

Finding the Fourth Proportional to 12,543,891.31, 18,815,840.21 and 3,568,443.31

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Solution

The fourth proportional to 12,543,891.31, 18,815,840.21 and 3,568,443.31 is: 5,352,665.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543,891.31 : 18,815,840.21 = 3,568,443.31 : x
  2. Step 2: Convert to fraction form
    12,543,891.31/18,815,840.21 = 3,568,443.31/x
  3. Step 3: Cross multiply
    12,543,891.31x = 18,815,840.21 × 3,568,443.31
  4. Step 4: Simplify right side
    12,543,891.31x = 67,143,259,119,403.50
  5. Step 5: Solve for x
    x = 67,143,259,119,403.50/12,543,891.31
  6. Step 6: Final answer
    x = 5,352,665.89

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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.