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Finding the Fourth Proportional to 551,405,548.80, 760,939,660.80 and 303,886,906.56

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Solution

The fourth proportional to 551,405,548.80, 760,939,660.80 and 303,886,906.56 is: 419,363,932.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,405,548.80 : 760,939,660.80 = 303,886,906.56 : x
  2. Step 2: Convert to fraction form
    551,405,548.80/760,939,660.80 = 303,886,906.56/x
  3. Step 3: Cross multiply
    551,405,548.80x = 760,939,660.80 × 303,886,906.56
  4. Step 4: Simplify right side
    551,405,548.80x = 231,239,599,599,327,680
  5. Step 5: Solve for x
    x = 231,239,599,599,327,680/551,405,548.80
  6. Step 6: Final answer
    x = 419,363,932.96

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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.