Home / 812,154,759.94-1,218,279,379.11-229,840,290.82

Finding the Fourth Proportional to 812,154,759.94, 1,218,279,379.11 and 229,840,290.82

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Solution

The fourth proportional to 812,154,759.94, 1,218,279,379.11 and 229,840,290.82 is: 344,773,804.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,154,759.94 : 1,218,279,379.11 = 229,840,290.82 : x
  2. Step 2: Convert to fraction form
    812,154,759.94/1,218,279,379.11 = 229,840,290.82/x
  3. Step 3: Cross multiply
    812,154,759.94x = 1,218,279,379.11 × 229,840,290.82
  4. Step 4: Simplify right side
    812,154,759.94x = 280,009,686,794,651,392
  5. Step 5: Solve for x
    x = 280,009,686,794,651,392/812,154,759.94
  6. Step 6: Final answer
    x = 344,773,804.95

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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.