Home / 12,186,179.80-18,170,322.03-11,851,371.97

Finding the Fourth Proportional to 12,186,179.80, 18,170,322.03 and 11,851,371.97

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Solution

The fourth proportional to 12,186,179.80, 18,170,322.03 and 11,851,371.97 is: 17,671,103.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,186,179.80 : 18,170,322.03 = 11,851,371.97 : x
  2. Step 2: Convert to fraction form
    12,186,179.80/18,170,322.03 = 11,851,371.97/x
  3. Step 3: Cross multiply
    12,186,179.80x = 18,170,322.03 × 11,851,371.97
  4. Step 4: Simplify right side
    12,186,179.80x = 215,343,245,146,789.69
  5. Step 5: Solve for x
    x = 215,343,245,146,789.69/12,186,179.80
  6. Step 6: Final answer
    x = 17,671,103.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.