Home / 38,647,245.51-53,332,884.42-21,243,405.69

Finding the Fourth Proportional to 38,647,245.51, 53,332,884.42 and 21,243,405.69

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Solution

The fourth proportional to 38,647,245.51, 53,332,884.42 and 21,243,405.69 is: 29,315,727.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,647,245.51 : 53,332,884.42 = 21,243,405.69 : x
  2. Step 2: Convert to fraction form
    38,647,245.51/53,332,884.42 = 21,243,405.69/x
  3. Step 3: Cross multiply
    38,647,245.51x = 53,332,884.42 × 21,243,405.69
  4. Step 4: Simplify right side
    38,647,245.51x = 1,132,972,100,351,940.50
  5. Step 5: Solve for x
    x = 1,132,972,100,351,940.50/38,647,245.51
  6. Step 6: Final answer
    x = 29,315,727.04

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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.