Home / 3,419,076.30-5,128,614.45-2,621,914.80

Finding the Fourth Proportional to 3,419,076.30, 5,128,614.45 and 2,621,914.80

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Solution

The fourth proportional to 3,419,076.30, 5,128,614.45 and 2,621,914.80 is: 3,932,872.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419,076.30 : 5,128,614.45 = 2,621,914.80 : x
  2. Step 2: Convert to fraction form
    3,419,076.30/5,128,614.45 = 2,621,914.80/x
  3. Step 3: Cross multiply
    3,419,076.30x = 5,128,614.45 × 2,621,914.80
  4. Step 4: Simplify right side
    3,419,076.30x = 13,446,790,129,948.86
  5. Step 5: Solve for x
    x = 13,446,790,129,948.86/3,419,076.30
  6. Step 6: Final answer
    x = 3,932,872.20

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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.