Home / 12,866,322.55-17,755,833.60-6,986,204.57

Finding the Fourth Proportional to 12,866,322.55, 17,755,833.60 and 6,986,204.57

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Solution

The fourth proportional to 12,866,322.55, 17,755,833.60 and 6,986,204.57 is: 9,641,129.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,866,322.55 : 17,755,833.60 = 6,986,204.57 : x
  2. Step 2: Convert to fraction form
    12,866,322.55/17,755,833.60 = 6,986,204.57/x
  3. Step 3: Cross multiply
    12,866,322.55x = 17,755,833.60 × 6,986,204.57
  4. Step 4: Simplify right side
    12,866,322.55x = 124,045,885,854,576.05
  5. Step 5: Solve for x
    x = 124,045,885,854,576.05/12,866,322.55
  6. Step 6: Final answer
    x = 9,641,129.81

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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.