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Finding the Fourth Proportional to 39,872,470.80, 59,836,699.80 and 17,169,661.20

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Solution

The fourth proportional to 39,872,470.80, 59,836,699.80 and 17,169,661.20 is: 25,766,546.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,872,470.80 : 59,836,699.80 = 17,169,661.20 : x
  2. Step 2: Convert to fraction form
    39,872,470.80/59,836,699.80 = 17,169,661.20/x
  3. Step 3: Cross multiply
    39,872,470.80x = 59,836,699.80 × 17,169,661.20
  4. Step 4: Simplify right side
    39,872,470.80x = 1,027,375,862,892,107.62
  5. Step 5: Solve for x
    x = 1,027,375,862,892,107.62/39,872,470.80
  6. Step 6: Final answer
    x = 25,766,546.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.