Home / 18,589,542.72-27,889,044.12-10,919,673.60

Finding the Fourth Proportional to 18,589,542.72, 27,889,044.12 and 10,919,673.60

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Solution

The fourth proportional to 18,589,542.72, 27,889,044.12 and 10,919,673.60 is: 16,382,288.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,589,542.72 : 27,889,044.12 = 10,919,673.60 : x
  2. Step 2: Convert to fraction form
    18,589,542.72/27,889,044.12 = 10,919,673.60/x
  3. Step 3: Cross multiply
    18,589,542.72x = 27,889,044.12 × 10,919,673.60
  4. Step 4: Simplify right side
    18,589,542.72x = 304,539,258,806,399.25
  5. Step 5: Solve for x
    x = 304,539,258,806,399.25/18,589,542.72
  6. Step 6: Final answer
    x = 16,382,288.87

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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.