Home / 12,790,515.85-17,650,958.92-6,989,298.48

Finding the Fourth Proportional to 12,790,515.85, 17,650,958.92 and 6,989,298.48

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Solution

The fourth proportional to 12,790,515.85, 17,650,958.92 and 6,989,298.48 is: 9,645,257.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790,515.85 : 17,650,958.92 = 6,989,298.48 : x
  2. Step 2: Convert to fraction form
    12,790,515.85/17,650,958.92 = 6,989,298.48/x
  3. Step 3: Cross multiply
    12,790,515.85x = 17,650,958.92 × 6,989,298.48
  4. Step 4: Simplify right side
    12,790,515.85x = 123,367,820,332,625.20
  5. Step 5: Solve for x
    x = 123,367,820,332,625.20/12,790,515.85
  6. Step 6: Final answer
    x = 9,645,257.61

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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.