Home / 815,755,589.83-1,223,872,159.85-263,046,902.36

Finding the Fourth Proportional to 815,755,589.83, 1,223,872,159.85 and 263,046,902.36

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Solution

The fourth proportional to 815,755,589.83, 1,223,872,159.85 and 263,046,902.36 is: 394,647,348.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,755,589.83 : 1,223,872,159.85 = 263,046,902.36 : x
  2. Step 2: Convert to fraction form
    815,755,589.83/1,223,872,159.85 = 263,046,902.36/x
  3. Step 3: Cross multiply
    815,755,589.83x = 1,223,872,159.85 × 263,046,902.36
  4. Step 4: Simplify right side
    815,755,589.83x = 321,935,780,531,870,080
  5. Step 5: Solve for x
    x = 321,935,780,531,870,080/815,755,589.83
  6. Step 6: Final answer
    x = 394,647,348.48

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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.