Home / 31,482,524.75-43,422,757.43-20,866,715.57

Finding the Fourth Proportional to 31,482,524.75, 43,422,757.43 and 20,866,715.57

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Solution

The fourth proportional to 31,482,524.75, 43,422,757.43 and 20,866,715.57 is: 28,780,739.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,482,524.75 : 43,422,757.43 = 20,866,715.57 : x
  2. Step 2: Convert to fraction form
    31,482,524.75/43,422,757.43 = 20,866,715.57/x
  3. Step 3: Cross multiply
    31,482,524.75x = 43,422,757.43 × 20,866,715.57
  4. Step 4: Simplify right side
    31,482,524.75x = 906,090,328,561,137.50
  5. Step 5: Solve for x
    x = 906,090,328,561,137.50/31,482,524.75
  6. Step 6: Final answer
    x = 28,780,739.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.