Home / 8,712,589.79-13,067,162.42-8,280,515.13

Finding the Fourth Proportional to 8,712,589.79, 13,067,162.42 and 8,280,515.13

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Solution

The fourth proportional to 8,712,589.79, 13,067,162.42 and 8,280,515.13 is: 12,419,135.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712,589.79 : 13,067,162.42 = 8,280,515.13 : x
  2. Step 2: Convert to fraction form
    8,712,589.79/13,067,162.42 = 8,280,515.13/x
  3. Step 3: Cross multiply
    8,712,589.79x = 13,067,162.42 × 8,280,515.13
  4. Step 4: Simplify right side
    8,712,589.79x = 108,202,836,083,574.83
  5. Step 5: Solve for x
    x = 108,202,836,083,574.83/8,712,589.79
  6. Step 6: Final answer
    x = 12,419,135.84

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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.