Home / 399,383,680.24-551,138,902.45-223,173,123.54

Finding the Fourth Proportional to 399,383,680.24, 551,138,902.45 and 223,173,123.54

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Solution

The fourth proportional to 399,383,680.24, 551,138,902.45 and 223,173,123.54 is: 307,973,000.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,383,680.24 : 551,138,902.45 = 223,173,123.54 : x
  2. Step 2: Convert to fraction form
    399,383,680.24/551,138,902.45 = 223,173,123.54/x
  3. Step 3: Cross multiply
    399,383,680.24x = 551,138,902.45 × 223,173,123.54
  4. Step 4: Simplify right side
    399,383,680.24x = 122,999,390,364,173,872
  5. Step 5: Solve for x
    x = 122,999,390,364,173,872/399,383,680.24
  6. Step 6: Final answer
    x = 307,973,000.52

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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.