Home / 1,369,967,046.40-1,890,554,537.58-743,435,474.36

Finding the Fourth Proportional to 1,369,967,046.40, 1,890,554,537.58 and 743,435,474.36

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Solution

The fourth proportional to 1,369,967,046.40, 1,890,554,537.58 and 743,435,474.36 is: 1,025,940,961.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,967,046.40 : 1,890,554,537.58 = 743,435,474.36 : x
  2. Step 2: Convert to fraction form
    1,369,967,046.40/1,890,554,537.58 = 743,435,474.36/x
  3. Step 3: Cross multiply
    1,369,967,046.40x = 1,890,554,537.58 × 743,435,474.36
  4. Step 4: Simplify right side
    1,369,967,046.40x = 1,405,505,309,449,237,760
  5. Step 5: Solve for x
    x = 1,405,505,309,449,237,760/1,369,967,046.40
  6. Step 6: Final answer
    x = 1,025,940,961.97

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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.