Home / 3,939,811,155.55-5,436,899,083.87-2,179,691,160.67

Finding the Fourth Proportional to 3,939,811,155.55, 5,436,899,083.87 and 2,179,691,160.67

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Solution

The fourth proportional to 3,939,811,155.55, 5,436,899,083.87 and 2,179,691,160.67 is: 3,007,951,499.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939,811,155.55 : 5,436,899,083.87 = 2,179,691,160.67 : x
  2. Step 2: Convert to fraction form
    3,939,811,155.55/5,436,899,083.87 = 2,179,691,160.67/x
  3. Step 3: Cross multiply
    3,939,811,155.55x = 5,436,899,083.87 × 2,179,691,160.67
  4. Step 4: Simplify right side
    3,939,811,155.55x = 11,850,760,874,566,260,736
  5. Step 5: Solve for x
    x = 11,850,760,874,566,260,736/3,939,811,155.55
  6. Step 6: Final answer
    x = 3,007,951,499.88

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1.5x scale

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.