Home / 80,807,012.11-121,210,519.78-19,396,170.83

Finding the Fourth Proportional to 80,807,012.11, 121,210,519.78 and 19,396,170.83

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Solution

The fourth proportional to 80,807,012.11, 121,210,519.78 and 19,396,170.83 is: 29,094,256.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,807,012.11 : 121,210,519.78 = 19,396,170.83 : x
  2. Step 2: Convert to fraction form
    80,807,012.11/121,210,519.78 = 19,396,170.83/x
  3. Step 3: Cross multiply
    80,807,012.11x = 121,210,519.78 × 19,396,170.83
  4. Step 4: Simplify right side
    80,807,012.11x = 2,351,019,948,022,183.50
  5. Step 5: Solve for x
    x = 2,351,019,948,022,183.50/80,807,012.11
  6. Step 6: Final answer
    x = 29,094,256.63

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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.