Home / 12,962,186.40-19,446,044.40-3,987,645.60

Finding the Fourth Proportional to 12,962,186.40, 19,446,044.40 and 3,987,645.60

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Solution

The fourth proportional to 12,962,186.40, 19,446,044.40 and 3,987,645.60 is: 5,982,318.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,962,186.40 : 19,446,044.40 = 3,987,645.60 : x
  2. Step 2: Convert to fraction form
    12,962,186.40/19,446,044.40 = 3,987,645.60/x
  3. Step 3: Cross multiply
    12,962,186.40x = 19,446,044.40 × 3,987,645.60
  4. Step 4: Simplify right side
    12,962,186.40x = 77,543,933,389,064.64
  5. Step 5: Solve for x
    x = 77,543,933,389,064.64/12,962,186.40
  6. Step 6: Final answer
    x = 5,982,318.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.