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Finding the Fourth Proportional to 66,795,369.60, 100,118,404.80 and 38,055,273.60

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Solution

The fourth proportional to 66,795,369.60, 100,118,404.80 and 38,055,273.60 is: 57,040,380.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,795,369.60 : 100,118,404.80 = 38,055,273.60 : x
  2. Step 2: Convert to fraction form
    66,795,369.60/100,118,404.80 = 38,055,273.60/x
  3. Step 3: Cross multiply
    66,795,369.60x = 100,118,404.80 × 38,055,273.60
  4. Step 4: Simplify right side
    66,795,369.60x = 3,810,033,287,059,553.50
  5. Step 5: Solve for x
    x = 3,810,033,287,059,553.50/66,795,369.60
  6. Step 6: Final answer
    x = 57,040,380.34

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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.