Home / 80,055,511,731.54-120,082,747,449.60-20,363,664,016.80

Finding the Fourth Proportional to 80,055,511,731.54, 120,082,747,449.60 and 20,363,664,016.80

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Solution

The fourth proportional to 80,055,511,731.54, 120,082,747,449.60 and 20,363,664,016.80 is: 30,545,363,715.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,055,511,731.54 : 120,082,747,449.60 = 20,363,664,016.80 : x
  2. Step 2: Convert to fraction form
    80,055,511,731.54/120,082,747,449.60 = 20,363,664,016.80/x
  3. Step 3: Cross multiply
    80,055,511,731.54x = 120,082,747,449.60 × 20,363,664,016.80
  4. Step 4: Simplify right side
    80,055,511,731.54x = 2,445,324,723,277,901,332,480
  5. Step 5: Solve for x
    x = 2,445,324,723,277,901,332,480/80,055,511,731.54
  6. Step 6: Final answer
    x = 30,545,363,715.59

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1.5x scale

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.