Home / 994,122,313,932.38-1,491,020,212,223.60-428,007,589,966.96

Finding the Fourth Proportional to 994,122,313,932.38, 1,491,020,212,223.60 and 428,007,589,966.96

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Solution

The fourth proportional to 994,122,313,932.38, 1,491,020,212,223.60 and 428,007,589,966.96 is: 641,941,095,861.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,122,313,932.38 : 1,491,020,212,223.60 = 428,007,589,966.96 : x
  2. Step 2: Convert to fraction form
    994,122,313,932.38/1,491,020,212,223.60 = 428,007,589,966.96/x
  3. Step 3: Cross multiply
    994,122,313,932.38x = 1,491,020,212,223.60 × 428,007,589,966.96
  4. Step 4: Simplify right side
    994,122,313,932.38x = 638,167,967,625,848,293,425,152
  5. Step 5: Solve for x
    x = 638,167,967,625,848,293,425,152/994,122,313,932.38
  6. Step 6: Final answer
    x = 641,941,095,861.23

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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.