Home / 355,735,433,857.78-490,914,898,723.92-203,488,261,848.48

Finding the Fourth Proportional to 355,735,433,857.78, 490,914,898,723.92 and 203,488,261,848.48

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Solution

The fourth proportional to 355,735,433,857.78, 490,914,898,723.92 and 203,488,261,848.48 is: 280,813,801,351.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,735,433,857.78 : 490,914,898,723.92 = 203,488,261,848.48 : x
  2. Step 2: Convert to fraction form
    355,735,433,857.78/490,914,898,723.92 = 203,488,261,848.48/x
  3. Step 3: Cross multiply
    355,735,433,857.78x = 490,914,898,723.92 × 203,488,261,848.48
  4. Step 4: Simplify right side
    355,735,433,857.78x = 99,895,419,456,853,081,325,568
  5. Step 5: Solve for x
    x = 99,895,419,456,853,081,325,568/355,735,433,857.78
  6. Step 6: Final answer
    x = 280,813,801,351.01

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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.