Home / 80,247,771.28-120,198,705.54-54,196,821.26

Finding the Fourth Proportional to 80,247,771.28, 120,198,705.54 and 54,196,821.26

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Solution

The fourth proportional to 80,247,771.28, 120,198,705.54 and 54,196,821.26 is: 81,178,425.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,247,771.28 : 120,198,705.54 = 54,196,821.26 : x
  2. Step 2: Convert to fraction form
    80,247,771.28/120,198,705.54 = 54,196,821.26/x
  3. Step 3: Cross multiply
    80,247,771.28x = 120,198,705.54 × 54,196,821.26
  4. Step 4: Simplify right side
    80,247,771.28x = 6,514,387,759,481,265
  5. Step 5: Solve for x
    x = 6,514,387,759,481,265/80,247,771.28
  6. Step 6: Final answer
    x = 81,178,425.97

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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.