Home / 80,242,016.39-120,404,207.78-38,224,293.49

Finding the Fourth Proportional to 80,242,016.39, 120,404,207.78 and 38,224,293.49

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Solution

The fourth proportional to 80,242,016.39, 120,404,207.78 and 38,224,293.49 is: 57,356,058.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,242,016.39 : 120,404,207.78 = 38,224,293.49 : x
  2. Step 2: Convert to fraction form
    80,242,016.39/120,404,207.78 = 38,224,293.49/x
  3. Step 3: Cross multiply
    80,242,016.39x = 120,404,207.78 × 38,224,293.49
  4. Step 4: Simplify right side
    80,242,016.39x = 4,602,365,775,408,211
  5. Step 5: Solve for x
    x = 4,602,365,775,408,211/80,242,016.39
  6. Step 6: Final answer
    x = 57,356,058.36

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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.