Home / 810,213,729.41-1,215,320,608.70-196,793,821.73

Finding the Fourth Proportional to 810,213,729.41, 1,215,320,608.70 and 196,793,821.73

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Solution

The fourth proportional to 810,213,729.41, 1,215,320,608.70 and 196,793,821.73 is: 295,190,736.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,213,729.41 : 1,215,320,608.70 = 196,793,821.73 : x
  2. Step 2: Convert to fraction form
    810,213,729.41/1,215,320,608.70 = 196,793,821.73/x
  3. Step 3: Cross multiply
    810,213,729.41x = 1,215,320,608.70 × 196,793,821.73
  4. Step 4: Simplify right side
    810,213,729.41x = 239,167,587,213,302,880
  5. Step 5: Solve for x
    x = 239,167,587,213,302,880/810,213,729.41
  6. Step 6: Final answer
    x = 295,190,736.14

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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.