Home / 823,741,356.40-1,235,593,141.80-414,687,660.40

Finding the Fourth Proportional to 823,741,356.40, 1,235,593,141.80 and 414,687,660.40

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Solution

The fourth proportional to 823,741,356.40, 1,235,593,141.80 and 414,687,660.40 is: 622,021,979.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,741,356.40 : 1,235,593,141.80 = 414,687,660.40 : x
  2. Step 2: Convert to fraction form
    823,741,356.40/1,235,593,141.80 = 414,687,660.40/x
  3. Step 3: Cross multiply
    823,741,356.40x = 1,235,593,141.80 × 414,687,660.40
  4. Step 4: Simplify right side
    823,741,356.40x = 512,385,229,179,327,424
  5. Step 5: Solve for x
    x = 512,385,229,179,327,424/823,741,356.40
  6. Step 6: Final answer
    x = 622,021,979.59

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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.