Home / 12,786,840-17,645,839.20-7,063,704

Finding the Fourth Proportional to 12,786,840, 17,645,839.20 and 7,063,704

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Solution

The fourth proportional to 12,786,840, 17,645,839.20 and 7,063,704 is: 9,747,911.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,786,840 : 17,645,839.20 = 7,063,704 : x
  2. Step 2: Convert to fraction form
    12,786,840/17,645,839.20 = 7,063,704/x
  3. Step 3: Cross multiply
    12,786,840x = 17,645,839.20 × 7,063,704
  4. Step 4: Simplify right side
    12,786,840x = 124,644,984,940,396.80
  5. Step 5: Solve for x
    x = 124,644,984,940,396.80/12,786,840
  6. Step 6: Final answer
    x = 9,747,911.52

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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.