Home / 80,629,722.52-120,945,028.46-20,045,448.52

Finding the Fourth Proportional to 80,629,722.52, 120,945,028.46 and 20,045,448.52

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Solution

The fourth proportional to 80,629,722.52, 120,945,028.46 and 20,045,448.52 is: 30,068,283.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,629,722.52 : 120,945,028.46 = 20,045,448.52 : x
  2. Step 2: Convert to fraction form
    80,629,722.52/120,945,028.46 = 20,045,448.52/x
  3. Step 3: Cross multiply
    80,629,722.52x = 120,945,028.46 × 20,045,448.52
  4. Step 4: Simplify right side
    80,629,722.52x = 2,424,397,341,744,864.50
  5. Step 5: Solve for x
    x = 2,424,397,341,744,864.50/80,629,722.52
  6. Step 6: Final answer
    x = 30,068,283.33

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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.