Home / 3,855,933.70-5,318,085.79-3,389,790.90

Finding the Fourth Proportional to 3,855,933.70, 5,318,085.79 and 3,389,790.90

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Solution

The fourth proportional to 3,855,933.70, 5,318,085.79 and 3,389,790.90 is: 4,675,183.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855,933.70 : 5,318,085.79 = 3,389,790.90 : x
  2. Step 2: Convert to fraction form
    3,855,933.70/5,318,085.79 = 3,389,790.90/x
  3. Step 3: Cross multiply
    3,855,933.70x = 5,318,085.79 × 3,389,790.90
  4. Step 4: Simplify right side
    3,855,933.70x = 18,027,198,816,361.31
  5. Step 5: Solve for x
    x = 18,027,198,816,361.31/3,855,933.70
  6. Step 6: Final answer
    x = 4,675,183.81

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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.