Home / 80,629,868-111,278,664.20-45,827,789.80

Finding the Fourth Proportional to 80,629,868, 111,278,664.20 and 45,827,789.80

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Solution

The fourth proportional to 80,629,868, 111,278,664.20 and 45,827,789.80 is: 63,247,718.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,629,868 : 111,278,664.20 = 45,827,789.80 : x
  2. Step 2: Convert to fraction form
    80,629,868/111,278,664.20 = 45,827,789.80/x
  3. Step 3: Cross multiply
    80,629,868x = 111,278,664.20 × 45,827,789.80
  4. Step 4: Simplify right side
    80,629,868x = 5,099,655,232,182,385
  5. Step 5: Solve for x
    x = 5,099,655,232,182,385/80,629,868
  6. Step 6: Final answer
    x = 63,247,718.97

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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.