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Finding the Fourth Proportional to 157,679,193.70, 217,575,791.04 and 88,055,698.78

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Solution

The fourth proportional to 157,679,193.70, 217,575,791.04 and 88,055,698.78 is: 121,504,859.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,679,193.70 : 217,575,791.04 = 88,055,698.78 : x
  2. Step 2: Convert to fraction form
    157,679,193.70/217,575,791.04 = 88,055,698.78/x
  3. Step 3: Cross multiply
    157,679,193.70x = 217,575,791.04 × 88,055,698.78
  4. Step 4: Simplify right side
    157,679,193.70x = 19,158,788,317,638,464
  5. Step 5: Solve for x
    x = 19,158,788,317,638,464/157,679,193.70
  6. Step 6: Final answer
    x = 121,504,859.76

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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.