Home / 812,863,092.20-1,121,661,104.72-450,747,950.81

Finding the Fourth Proportional to 812,863,092.20, 1,121,661,104.72 and 450,747,950.81

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Solution

The fourth proportional to 812,863,092.20, 1,121,661,104.72 and 450,747,950.81 is: 621,982,286.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,863,092.20 : 1,121,661,104.72 = 450,747,950.81 : x
  2. Step 2: Convert to fraction form
    812,863,092.20/1,121,661,104.72 = 450,747,950.81/x
  3. Step 3: Cross multiply
    812,863,092.20x = 1,121,661,104.72 × 450,747,950.81
  4. Step 4: Simplify right side
    812,863,092.20x = 505,586,444,447,958,720
  5. Step 5: Solve for x
    x = 505,586,444,447,958,720/812,863,092.20
  6. Step 6: Final answer
    x = 621,982,286.20

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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.