Home / 355,003,361.43-489,895,240.23-198,371,755.50

Finding the Fourth Proportional to 355,003,361.43, 489,895,240.23 and 198,371,755.50

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Solution

The fourth proportional to 355,003,361.43, 489,895,240.23 and 198,371,755.50 is: 273,747,770.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,003,361.43 : 489,895,240.23 = 198,371,755.50 : x
  2. Step 2: Convert to fraction form
    355,003,361.43/489,895,240.23 = 198,371,755.50/x
  3. Step 3: Cross multiply
    355,003,361.43x = 489,895,240.23 × 198,371,755.50
  4. Step 4: Simplify right side
    355,003,361.43x = 97,181,378,815,519,328
  5. Step 5: Solve for x
    x = 97,181,378,815,519,328/355,003,361.43
  6. Step 6: Final answer
    x = 273,747,770.79

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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.