Home / 13,991,146.92-20,987,273.34-3,894,650.28

Finding the Fourth Proportional to 13,991,146.92, 20,987,273.34 and 3,894,650.28

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Solution

The fourth proportional to 13,991,146.92, 20,987,273.34 and 3,894,650.28 is: 5,842,129.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991,146.92 : 20,987,273.34 = 3,894,650.28 : x
  2. Step 2: Convert to fraction form
    13,991,146.92/20,987,273.34 = 3,894,650.28/x
  3. Step 3: Cross multiply
    13,991,146.92x = 20,987,273.34 × 3,894,650.28
  4. Step 4: Simplify right side
    13,991,146.92x = 81,738,089,990,067.53
  5. Step 5: Solve for x
    x = 81,738,089,990,067.53/13,991,146.92
  6. Step 6: Final answer
    x = 5,842,129.34

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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.