Home / 21,698,361.54-29,945,576.79-11,910,463.65

Finding the Fourth Proportional to 21,698,361.54, 29,945,576.79 and 11,910,463.65

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Solution

The fourth proportional to 21,698,361.54, 29,945,576.79 and 11,910,463.65 is: 16,437,448.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,698,361.54 : 29,945,576.79 = 11,910,463.65 : x
  2. Step 2: Convert to fraction form
    21,698,361.54/29,945,576.79 = 11,910,463.65/x
  3. Step 3: Cross multiply
    21,698,361.54x = 29,945,576.79 × 11,910,463.65
  4. Step 4: Simplify right side
    21,698,361.54x = 356,665,703,835,578.69
  5. Step 5: Solve for x
    x = 356,665,703,835,578.69/21,698,361.54
  6. Step 6: Final answer
    x = 16,437,448.66

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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.