Home / 355,007,118.08-489,900,425.28-198,375,512.15

Finding the Fourth Proportional to 355,007,118.08, 489,900,425.28 and 198,375,512.15

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Solution

The fourth proportional to 355,007,118.08, 489,900,425.28 and 198,375,512.15 is: 273,752,955.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,007,118.08 : 489,900,425.28 = 198,375,512.15 : x
  2. Step 2: Convert to fraction form
    355,007,118.08/489,900,425.28 = 198,375,512.15/x
  3. Step 3: Cross multiply
    355,007,118.08x = 489,900,425.28 × 198,375,512.15
  4. Step 4: Simplify right side
    355,007,118.08x = 97,184,247,766,267,264
  5. Step 5: Solve for x
    x = 97,184,247,766,267,264/355,007,118.08
  6. Step 6: Final answer
    x = 273,752,955.41

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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.