Home / 354,654,882.44-489,453,990.21-198,052,243.32

Finding the Fourth Proportional to 354,654,882.44, 489,453,990.21 and 198,052,243.32

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Solution

The fourth proportional to 354,654,882.44, 489,453,990.21 and 198,052,243.32 is: 273,328,989.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,654,882.44 : 489,453,990.21 = 198,052,243.32 : x
  2. Step 2: Convert to fraction form
    354,654,882.44/489,453,990.21 = 198,052,243.32/x
  3. Step 3: Cross multiply
    354,654,882.44x = 489,453,990.21 × 198,052,243.32
  4. Step 4: Simplify right side
    354,654,882.44x = 96,937,460,764,851,264
  5. Step 5: Solve for x
    x = 96,937,460,764,851,264/354,654,882.44
  6. Step 6: Final answer
    x = 273,328,989.86

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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.