Home / 300,847,918.42-415,017,332.13-196,487,077.78

Finding the Fourth Proportional to 300,847,918.42, 415,017,332.13 and 196,487,077.78

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Solution

The fourth proportional to 300,847,918.42, 415,017,332.13 and 196,487,077.78 is: 271,052,375.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,847,918.42 : 415,017,332.13 = 196,487,077.78 : x
  2. Step 2: Convert to fraction form
    300,847,918.42/415,017,332.13 = 196,487,077.78/x
  3. Step 3: Cross multiply
    300,847,918.42x = 415,017,332.13 × 196,487,077.78
  4. Step 4: Simplify right side
    300,847,918.42x = 81,545,542,818,275,408
  5. Step 5: Solve for x
    x = 81,545,542,818,275,408/300,847,918.42
  6. Step 6: Final answer
    x = 271,052,375.06

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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.