Home / 39,318,135.85-54,259,279.37-21,915,584.56

Finding the Fourth Proportional to 39,318,135.85, 54,259,279.37 and 21,915,584.56

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Solution

The fourth proportional to 39,318,135.85, 54,259,279.37 and 21,915,584.56 is: 30,243,647.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,318,135.85 : 54,259,279.37 = 21,915,584.56 : x
  2. Step 2: Convert to fraction form
    39,318,135.85/54,259,279.37 = 21,915,584.56/x
  3. Step 3: Cross multiply
    39,318,135.85x = 54,259,279.37 × 21,915,584.56
  4. Step 4: Simplify right side
    39,318,135.85x = 1,189,123,825,197,898.50
  5. Step 5: Solve for x
    x = 1,189,123,825,197,898.50/39,318,135.85
  6. Step 6: Final answer
    x = 30,243,647.10

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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.