Home / 392,448,939.70-588,673,409.55-133,578,123.70

Finding the Fourth Proportional to 392,448,939.70, 588,673,409.55 and 133,578,123.70

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Solution

The fourth proportional to 392,448,939.70, 588,673,409.55 and 133,578,123.70 is: 200,367,185.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,448,939.70 : 588,673,409.55 = 133,578,123.70 : x
  2. Step 2: Convert to fraction form
    392,448,939.70/588,673,409.55 = 133,578,123.70/x
  3. Step 3: Cross multiply
    392,448,939.70x = 588,673,409.55 × 133,578,123.70
  4. Step 4: Simplify right side
    392,448,939.70x = 78,633,889,519,770,656
  5. Step 5: Solve for x
    x = 78,633,889,519,770,656/392,448,939.70
  6. Step 6: Final answer
    x = 200,367,185.55

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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.