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Finding the Fourth Proportional to 66,605,957.82, 99,915,788.25 and 25,141,760.10

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Solution

The fourth proportional to 66,605,957.82, 99,915,788.25 and 25,141,760.10 is: 37,715,226.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,605,957.82 : 99,915,788.25 = 25,141,760.10 : x
  2. Step 2: Convert to fraction form
    66,605,957.82/99,915,788.25 = 25,141,760.10/x
  3. Step 3: Cross multiply
    66,605,957.82x = 99,915,788.25 × 25,141,760.10
  4. Step 4: Simplify right side
    66,605,957.82x = 2,512,058,778,383,899
  5. Step 5: Solve for x
    x = 2,512,058,778,383,899/66,605,957.82
  6. Step 6: Final answer
    x = 37,715,226.39

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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.