Home / 810,213,743.16-1,215,320,629.32-196,793,835.48

Finding the Fourth Proportional to 810,213,743.16, 1,215,320,629.32 and 196,793,835.48

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Solution

The fourth proportional to 810,213,743.16, 1,215,320,629.32 and 196,793,835.48 is: 295,190,756.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,213,743.16 : 1,215,320,629.32 = 196,793,835.48 : x
  2. Step 2: Convert to fraction form
    810,213,743.16/1,215,320,629.32 = 196,793,835.48/x
  3. Step 3: Cross multiply
    810,213,743.16x = 1,215,320,629.32 × 196,793,835.48
  4. Step 4: Simplify right side
    810,213,743.16x = 239,167,607,981,850,112
  5. Step 5: Solve for x
    x = 239,167,607,981,850,112/810,213,743.16
  6. Step 6: Final answer
    x = 295,190,756.76

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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.