Home / 398,705,974.76-598,056,452.56-214,560,192.04

Finding the Fourth Proportional to 398,705,974.76, 598,056,452.56 and 214,560,192.04

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Solution

The fourth proportional to 398,705,974.76, 598,056,452.56 and 214,560,192.04 is: 321,838,937.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,705,974.76 : 598,056,452.56 = 214,560,192.04 : x
  2. Step 2: Convert to fraction form
    398,705,974.76/598,056,452.56 = 214,560,192.04/x
  3. Step 3: Cross multiply
    398,705,974.76x = 598,056,452.56 × 214,560,192.04
  4. Step 4: Simplify right side
    398,705,974.76x = 128,319,107,312,034,736
  5. Step 5: Solve for x
    x = 128,319,107,312,034,736/398,705,974.76
  6. Step 6: Final answer
    x = 321,838,937.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.