Home / 38,469,769.20-53,086,687.11-21,065,814.54

Finding the Fourth Proportional to 38,469,769.20, 53,086,687.11 and 21,065,814.54

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Solution

The fourth proportional to 38,469,769.20, 53,086,687.11 and 21,065,814.54 is: 29,069,950.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,469,769.20 : 53,086,687.11 = 21,065,814.54 : x
  2. Step 2: Convert to fraction form
    38,469,769.20/53,086,687.11 = 21,065,814.54/x
  3. Step 3: Cross multiply
    38,469,769.20x = 53,086,687.11 × 21,065,814.54
  4. Step 4: Simplify right side
    38,469,769.20x = 1,118,314,305,202,268.50
  5. Step 5: Solve for x
    x = 1,118,314,305,202,268.50/38,469,769.20
  6. Step 6: Final answer
    x = 29,069,950.99

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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.