Home / 220,563,172.80-330,846,399.45-82,420,005.60

Finding the Fourth Proportional to 220,563,172.80, 330,846,399.45 and 82,420,005.60

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Solution

The fourth proportional to 220,563,172.80, 330,846,399.45 and 82,420,005.60 is: 123,630,621.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,563,172.80 : 330,846,399.45 = 82,420,005.60 : x
  2. Step 2: Convert to fraction form
    220,563,172.80/330,846,399.45 = 82,420,005.60/x
  3. Step 3: Cross multiply
    220,563,172.80x = 330,846,399.45 × 82,420,005.60
  4. Step 4: Simplify right side
    220,563,172.80x = 27,268,362,095,408,832
  5. Step 5: Solve for x
    x = 27,268,362,095,408,832/220,563,172.80
  6. Step 6: Final answer
    x = 123,630,621.33

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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.