Home / 13,311,568.59-18,236,761.77-12,813,793.74

Finding the Fourth Proportional to 13,311,568.59, 18,236,761.77 and 12,813,793.74

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Solution

The fourth proportional to 13,311,568.59, 18,236,761.77 and 12,813,793.74 is: 17,554,813.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311,568.59 : 18,236,761.77 = 12,813,793.74 : x
  2. Step 2: Convert to fraction form
    13,311,568.59/18,236,761.77 = 12,813,793.74/x
  3. Step 3: Cross multiply
    13,311,568.59x = 18,236,761.77 × 12,813,793.74
  4. Step 4: Simplify right side
    13,311,568.59x = 233,682,103,806,297.31
  5. Step 5: Solve for x
    x = 233,682,103,806,297.31/13,311,568.59
  6. Step 6: Final answer
    x = 17,554,813.49

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.