Home / 12,507,287.11-18,764,165.21-7,324,273.78

Finding the Fourth Proportional to 12,507,287.11, 18,764,165.21 and 7,324,273.78

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Solution

The fourth proportional to 12,507,287.11, 18,764,165.21 and 7,324,273.78 is: 10,988,304.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507,287.11 : 18,764,165.21 = 7,324,273.78 : x
  2. Step 2: Convert to fraction form
    12,507,287.11/18,764,165.21 = 7,324,273.78/x
  3. Step 3: Cross multiply
    12,507,287.11x = 18,764,165.21 × 7,324,273.78
  4. Step 4: Simplify right side
    12,507,287.11x = 137,433,883,314,406.89
  5. Step 5: Solve for x
    x = 137,433,883,314,406.89/12,507,287.11
  6. Step 6: Final answer
    x = 10,988,304.82

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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.