Home / 395,080,640.96-545,244,765.33-218,923,892.72

Finding the Fourth Proportional to 395,080,640.96, 545,244,765.33 and 218,923,892.72

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Solution

The fourth proportional to 395,080,640.96, 545,244,765.33 and 218,923,892.72 is: 302,133,524.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,080,640.96 : 545,244,765.33 = 218,923,892.72 : x
  2. Step 2: Convert to fraction form
    395,080,640.96/545,244,765.33 = 218,923,892.72/x
  3. Step 3: Cross multiply
    395,080,640.96x = 545,244,765.33 × 218,923,892.72
  4. Step 4: Simplify right side
    395,080,640.96x = 119,367,106,511,246,512
  5. Step 5: Solve for x
    x = 119,367,106,511,246,512/395,080,640.96
  6. Step 6: Final answer
    x = 302,133,524.49

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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.