Home / 994,122,313,933.38-1,491,020,212,225.10-428,007,589,967.96

Finding the Fourth Proportional to 994,122,313,933.38, 1,491,020,212,225.10 and 428,007,589,967.96

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Solution

The fourth proportional to 994,122,313,933.38, 1,491,020,212,225.10 and 428,007,589,967.96 is: 641,941,095,862.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,122,313,933.38 : 1,491,020,212,225.10 = 428,007,589,967.96 : x
  2. Step 2: Convert to fraction form
    994,122,313,933.38/1,491,020,212,225.10 = 428,007,589,967.96/x
  3. Step 3: Cross multiply
    994,122,313,933.38x = 1,491,020,212,225.10 × 428,007,589,967.96
  4. Step 4: Simplify right side
    994,122,313,933.38x = 638,167,967,627,981,415,776,256
  5. Step 5: Solve for x
    x = 638,167,967,627,981,415,776,256/994,122,313,933.38
  6. Step 6: Final answer
    x = 641,941,095,862.73

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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.