Home / 355,003,379.52-489,895,265.07-198,371,773.50

Finding the Fourth Proportional to 355,003,379.52, 489,895,265.07 and 198,371,773.50

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Solution

The fourth proportional to 355,003,379.52, 489,895,265.07 and 198,371,773.50 is: 273,747,795.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,003,379.52 : 489,895,265.07 = 198,371,773.50 : x
  2. Step 2: Convert to fraction form
    355,003,379.52/489,895,265.07 = 198,371,773.50/x
  3. Step 3: Cross multiply
    355,003,379.52x = 489,895,265.07 × 198,371,773.50
  4. Step 4: Simplify right side
    355,003,379.52x = 97,181,392,561,188,496
  5. Step 5: Solve for x
    x = 97,181,392,561,188,496/355,003,379.52
  6. Step 6: Final answer
    x = 273,747,795.56

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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.