Home / 290,303,786.98-400,619,049.41-159,923,594.98

Finding the Fourth Proportional to 290,303,786.98, 400,619,049.41 and 159,923,594.98

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Solution

The fourth proportional to 290,303,786.98, 400,619,049.41 and 159,923,594.98 is: 220,694,463.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,303,786.98 : 400,619,049.41 = 159,923,594.98 : x
  2. Step 2: Convert to fraction form
    290,303,786.98/400,619,049.41 = 159,923,594.98/x
  3. Step 3: Cross multiply
    290,303,786.98x = 400,619,049.41 × 159,923,594.98
  4. Step 4: Simplify right side
    290,303,786.98x = 64,068,438,596,314,728
  5. Step 5: Solve for x
    x = 64,068,438,596,314,728/290,303,786.98
  6. Step 6: Final answer
    x = 220,694,463.77

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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.