Home / 300,847,917.42-415,017,330.75-196,487,076.78

Finding the Fourth Proportional to 300,847,917.42, 415,017,330.75 and 196,487,076.78

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Solution

The fourth proportional to 300,847,917.42, 415,017,330.75 and 196,487,076.78 is: 271,052,373.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,847,917.42 : 415,017,330.75 = 196,487,076.78 : x
  2. Step 2: Convert to fraction form
    300,847,917.42/415,017,330.75 = 196,487,076.78/x
  3. Step 3: Cross multiply
    300,847,917.42x = 415,017,330.75 × 196,487,076.78
  4. Step 4: Simplify right side
    300,847,917.42x = 81,545,542,132,105,904
  5. Step 5: Solve for x
    x = 81,545,542,132,105,904/300,847,917.42
  6. Step 6: Final answer
    x = 271,052,373.68

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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.