Home / 80,055,511,732.54-120,082,747,451.10-20,363,664,017.80

Finding the Fourth Proportional to 80,055,511,732.54, 120,082,747,451.10 and 20,363,664,017.80

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Solution

The fourth proportional to 80,055,511,732.54, 120,082,747,451.10 and 20,363,664,017.80 is: 30,545,363,717.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,055,511,732.54 : 120,082,747,451.10 = 20,363,664,017.80 : x
  2. Step 2: Convert to fraction form
    80,055,511,732.54/120,082,747,451.10 = 20,363,664,017.80/x
  3. Step 3: Cross multiply
    80,055,511,732.54x = 120,082,747,451.10 × 20,363,664,017.80
  4. Step 4: Simplify right side
    80,055,511,732.54x = 2,445,324,723,428,529,799,168
  5. Step 5: Solve for x
    x = 2,445,324,723,428,529,799,168/80,055,511,732.54
  6. Step 6: Final answer
    x = 30,545,363,717.09

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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.