Home / 18,786,850.92-28,171,394.42-7,277,708.75

Finding the Fourth Proportional to 18,786,850.92, 28,171,394.42 and 7,277,708.75

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Solution

The fourth proportional to 18,786,850.92, 28,171,394.42 and 7,277,708.75 is: 10,913,122.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786,850.92 : 28,171,394.42 = 7,277,708.75 : x
  2. Step 2: Convert to fraction form
    18,786,850.92/28,171,394.42 = 7,277,708.75/x
  3. Step 3: Cross multiply
    18,786,850.92x = 28,171,394.42 × 7,277,708.75
  4. Step 4: Simplify right side
    18,786,850.92x = 205,023,203,492,889.66
  5. Step 5: Solve for x
    x = 205,023,203,492,889.66/18,786,850.92
  6. Step 6: Final answer
    x = 10,913,122.39

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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.