Home / 12,543,890.81-18,815,839.46-3,568,442.81

Finding the Fourth Proportional to 12,543,890.81, 18,815,839.46 and 3,568,442.81

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Solution

The fourth proportional to 12,543,890.81, 18,815,839.46 and 3,568,442.81 is: 5,352,665.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,543,890.81 : 18,815,839.46 = 3,568,442.81 : x
  2. Step 2: Convert to fraction form
    12,543,890.81/18,815,839.46 = 3,568,442.81/x
  3. Step 3: Cross multiply
    12,543,890.81x = 18,815,839.46 × 3,568,442.81
  4. Step 4: Simplify right side
    12,543,890.81x = 67,143,247,017,309.06
  5. Step 5: Solve for x
    x = 67,143,247,017,309.06/12,543,890.81
  6. Step 6: Final answer
    x = 5,352,665.14

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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.