Home / 18,940,989.20-28,412,498.03-5,986,154.36

Finding the Fourth Proportional to 18,940,989.20, 28,412,498.03 and 5,986,154.36

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Solution

The fourth proportional to 18,940,989.20, 28,412,498.03 and 5,986,154.36 is: 8,979,552.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,940,989.20 : 28,412,498.03 = 5,986,154.36 : x
  2. Step 2: Convert to fraction form
    18,940,989.20/28,412,498.03 = 5,986,154.36/x
  3. Step 3: Cross multiply
    18,940,989.20x = 28,412,498.03 × 5,986,154.36
  4. Step 4: Simplify right side
    18,940,989.20x = 170,081,599,001,876.38
  5. Step 5: Solve for x
    x = 170,081,599,001,876.38/18,940,989.20
  6. Step 6: Final answer
    x = 8,979,552.08

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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.