Home / 158,515,214.88-218,752,769.96-87,952,102.75

Finding the Fourth Proportional to 158,515,214.88, 218,752,769.96 and 87,952,102.75

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Solution

The fourth proportional to 158,515,214.88, 218,752,769.96 and 87,952,102.75 is: 121,374,885.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,515,214.88 : 218,752,769.96 = 87,952,102.75 : x
  2. Step 2: Convert to fraction form
    158,515,214.88/218,752,769.96 = 87,952,102.75/x
  3. Step 3: Cross multiply
    158,515,214.88x = 218,752,769.96 × 87,952,102.75
  4. Step 4: Simplify right side
    158,515,214.88x = 19,239,766,100,369,036
  5. Step 5: Solve for x
    x = 19,239,766,100,369,036/158,515,214.88
  6. Step 6: Final answer
    x = 121,374,885.78

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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.