Home / 3,180,789.38-4,389,161.64-1,891,380.62

Finding the Fourth Proportional to 3,180,789.38, 4,389,161.64 and 1,891,380.62

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Solution

The fourth proportional to 3,180,789.38, 4,389,161.64 and 1,891,380.62 is: 2,609,910.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180,789.38 : 4,389,161.64 = 1,891,380.62 : x
  2. Step 2: Convert to fraction form
    3,180,789.38/4,389,161.64 = 1,891,380.62/x
  3. Step 3: Cross multiply
    3,180,789.38x = 4,389,161.64 × 1,891,380.62
  4. Step 4: Simplify right side
    3,180,789.38x = 8,301,575,263,943.42
  5. Step 5: Solve for x
    x = 8,301,575,263,943.42/3,180,789.38
  6. Step 6: Final answer
    x = 2,609,910.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.