Home / 579,881,592.38-800,236,728.65-319,121,208.38

Finding the Fourth Proportional to 579,881,592.38, 800,236,728.65 and 319,121,208.38

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Solution

The fourth proportional to 579,881,592.38, 800,236,728.65 and 319,121,208.38 is: 440,387,339.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,881,592.38 : 800,236,728.65 = 319,121,208.38 : x
  2. Step 2: Convert to fraction form
    579,881,592.38/800,236,728.65 = 319,121,208.38/x
  3. Step 3: Cross multiply
    579,881,592.38x = 800,236,728.65 × 319,121,208.38
  4. Step 4: Simplify right side
    579,881,592.38x = 255,372,511,836,846,144
  5. Step 5: Solve for x
    x = 255,372,511,836,846,144/579,881,592.38
  6. Step 6: Final answer
    x = 440,387,339.75

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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.