Home / 20,646,691.53-28,493,183.42-11,827,847.21

Finding the Fourth Proportional to 20,646,691.53, 28,493,183.42 and 11,827,847.21

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Solution

The fourth proportional to 20,646,691.53, 28,493,183.42 and 11,827,847.21 is: 16,322,858.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,646,691.53 : 28,493,183.42 = 11,827,847.21 : x
  2. Step 2: Convert to fraction form
    20,646,691.53/28,493,183.42 = 11,827,847.21/x
  3. Step 3: Cross multiply
    20,646,691.53x = 28,493,183.42 × 11,827,847.21
  4. Step 4: Simplify right side
    20,646,691.53x = 337,013,019,976,313.06
  5. Step 5: Solve for x
    x = 337,013,019,976,313.06/20,646,691.53
  6. Step 6: Final answer
    x = 16,322,858.29

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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.