Home / 9,687,761.57-13,382,708.86-9,177,578.21

Finding the Fourth Proportional to 9,687,761.57, 13,382,708.86 and 9,177,578.21

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Solution

The fourth proportional to 9,687,761.57, 13,382,708.86 and 9,177,578.21 is: 12,677,939.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,687,761.57 : 13,382,708.86 = 9,177,578.21 : x
  2. Step 2: Convert to fraction form
    9,687,761.57/13,382,708.86 = 9,177,578.21/x
  3. Step 3: Cross multiply
    9,687,761.57x = 13,382,708.86 × 9,177,578.21
  4. Step 4: Simplify right side
    9,687,761.57x = 122,820,857,269,238.69
  5. Step 5: Solve for x
    x = 122,820,857,269,238.69/9,687,761.57
  6. Step 6: Final answer
    x = 12,677,939.72

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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.