Home / 80,629,871.28-111,278,668.73-45,827,793.09

Finding the Fourth Proportional to 80,629,871.28, 111,278,668.73 and 45,827,793.09

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Solution

The fourth proportional to 80,629,871.28, 111,278,668.73 and 45,827,793.09 is: 63,247,723.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,629,871.28 : 111,278,668.73 = 45,827,793.09 : x
  2. Step 2: Convert to fraction form
    80,629,871.28/111,278,668.73 = 45,827,793.09/x
  3. Step 3: Cross multiply
    80,629,871.28x = 111,278,668.73 × 45,827,793.09
  4. Step 4: Simplify right side
    80,629,871.28x = 5,099,655,805,659,954
  5. Step 5: Solve for x
    x = 5,099,655,805,659,954/80,629,871.28
  6. Step 6: Final answer
    x = 63,247,723.52

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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.