Home / 355,735,433,859.78-490,914,898,726.68-203,488,261,850.48

Finding the Fourth Proportional to 355,735,433,859.78, 490,914,898,726.68 and 203,488,261,850.48

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Solution

The fourth proportional to 355,735,433,859.78, 490,914,898,726.68 and 203,488,261,850.48 is: 280,813,801,353.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,735,433,859.78 : 490,914,898,726.68 = 203,488,261,850.48 : x
  2. Step 2: Convert to fraction form
    355,735,433,859.78/490,914,898,726.68 = 203,488,261,850.48/x
  3. Step 3: Cross multiply
    355,735,433,859.78x = 490,914,898,726.68 × 203,488,261,850.48
  4. Step 4: Simplify right side
    355,735,433,859.78x = 99,895,419,458,396,534,865,920
  5. Step 5: Solve for x
    x = 99,895,419,458,396,534,865,920/355,735,433,859.78
  6. Step 6: Final answer
    x = 280,813,801,353.77

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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.