Home / 12,570,183.85-18,845,105.17-3,929,838.92

Finding the Fourth Proportional to 12,570,183.85, 18,845,105.17 and 3,929,838.92

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Solution

The fourth proportional to 12,570,183.85, 18,845,105.17 and 3,929,838.92 is: 5,891,578.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570,183.85 : 18,845,105.17 = 3,929,838.92 : x
  2. Step 2: Convert to fraction form
    12,570,183.85/18,845,105.17 = 3,929,838.92/x
  3. Step 3: Cross multiply
    12,570,183.85x = 18,845,105.17 × 3,929,838.92
  4. Step 4: Simplify right side
    12,570,183.85x = 74,058,227,728,910.02
  5. Step 5: Solve for x
    x = 74,058,227,728,910.02/12,570,183.85
  6. Step 6: Final answer
    x = 5,891,578.73

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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.