Home / 355,310,536.68-490,290,791.94-196,515,425.97

Finding the Fourth Proportional to 355,310,536.68, 490,290,791.94 and 196,515,425.97

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Solution

The fourth proportional to 355,310,536.68, 490,290,791.94 and 196,515,425.97 is: 271,170,409.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,310,536.68 : 490,290,791.94 = 196,515,425.97 : x
  2. Step 2: Convert to fraction form
    355,310,536.68/490,290,791.94 = 196,515,425.97/x
  3. Step 3: Cross multiply
    355,310,536.68x = 490,290,791.94 × 196,515,425.97
  4. Step 4: Simplify right side
    355,310,536.68x = 96,349,703,827,257,744
  5. Step 5: Solve for x
    x = 96,349,703,827,257,744/355,310,536.68
  6. Step 6: Final answer
    x = 271,170,409.77

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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.