Home / 39,872,453.88-55,024,010.46-21,537,747.48

Finding the Fourth Proportional to 39,872,453.88, 55,024,010.46 and 21,537,747.48

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Solution

The fourth proportional to 39,872,453.88, 55,024,010.46 and 21,537,747.48 is: 29,722,104.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,872,453.88 : 55,024,010.46 = 21,537,747.48 : x
  2. Step 2: Convert to fraction form
    39,872,453.88/55,024,010.46 = 21,537,747.48/x
  3. Step 3: Cross multiply
    39,872,453.88x = 55,024,010.46 × 21,537,747.48
  4. Step 4: Simplify right side
    39,872,453.88x = 1,185,093,242,624,358.75
  5. Step 5: Solve for x
    x = 1,185,093,242,624,358.75/39,872,453.88
  6. Step 6: Final answer
    x = 29,722,104.54

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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.