Home / 299,901,529.71-449,872,033.29-78,578,288.97

Finding the Fourth Proportional to 299,901,529.71, 449,872,033.29 and 78,578,288.97

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Solution

The fourth proportional to 299,901,529.71, 449,872,033.29 and 78,578,288.97 is: 117,872,605.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,901,529.71 : 449,872,033.29 = 78,578,288.97 : x
  2. Step 2: Convert to fraction form
    299,901,529.71/449,872,033.29 = 78,578,288.97/x
  3. Step 3: Cross multiply
    299,901,529.71x = 449,872,033.29 × 78,578,288.97
  4. Step 4: Simplify right side
    299,901,529.71x = 35,350,174,631,383,080
  5. Step 5: Solve for x
    x = 35,350,174,631,383,080/299,901,529.71
  6. Step 6: Final answer
    x = 117,872,605.27

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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.