Home / 12,658,620-17,468,879.82-6,857,425.74

Finding the Fourth Proportional to 12,658,620, 17,468,879.82 and 6,857,425.74

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Solution

The fourth proportional to 12,658,620, 17,468,879.82 and 6,857,425.74 is: 9,463,238.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,658,620 : 17,468,879.82 = 6,857,425.74 : x
  2. Step 2: Convert to fraction form
    12,658,620/17,468,879.82 = 6,857,425.74/x
  3. Step 3: Cross multiply
    12,658,620x = 17,468,879.82 × 6,857,425.74
  4. Step 4: Simplify right side
    12,658,620x = 119,791,546,126,634.58
  5. Step 5: Solve for x
    x = 119,791,546,126,634.58/12,658,620
  6. Step 6: Final answer
    x = 9,463,238.97

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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.