Home / 10,687,315.20-16,040,995.20-5,642,246.40

Finding the Fourth Proportional to 10,687,315.20, 16,040,995.20 and 5,642,246.40

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Solution

The fourth proportional to 10,687,315.20, 16,040,995.20 and 5,642,246.40 is: 8,468,660.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,687,315.20 : 16,040,995.20 = 5,642,246.40 : x
  2. Step 2: Convert to fraction form
    10,687,315.20/16,040,995.20 = 5,642,246.40/x
  3. Step 3: Cross multiply
    10,687,315.20x = 16,040,995.20 × 5,642,246.40
  4. Step 4: Simplify right side
    10,687,315.20x = 90,507,247,419,617.28
  5. Step 5: Solve for x
    x = 90,507,247,419,617.28/10,687,315.20
  6. Step 6: Final answer
    x = 8,468,660.81

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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.