Home / 39,275,693.88-54,198,945.90-21,872,772.60

Finding the Fourth Proportional to 39,275,693.88, 54,198,945.90 and 21,872,772.60

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Solution

The fourth proportional to 39,275,693.88, 54,198,945.90 and 21,872,772.60 is: 30,183,584.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,275,693.88 : 54,198,945.90 = 21,872,772.60 : x
  2. Step 2: Convert to fraction form
    39,275,693.88/54,198,945.90 = 21,872,772.60/x
  3. Step 3: Cross multiply
    39,275,693.88x = 54,198,945.90 × 21,872,772.60
  4. Step 4: Simplify right side
    39,275,693.88x = 1,185,481,218,830,402.50
  5. Step 5: Solve for x
    x = 1,185,481,218,830,402.50/39,275,693.88
  6. Step 6: Final answer
    x = 30,183,584.34

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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.