Home / 220,536,121.20-330,804,181.80-209,954,540.40

Finding the Fourth Proportional to 220,536,121.20, 330,804,181.80 and 209,954,540.40

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Solution

The fourth proportional to 220,536,121.20, 330,804,181.80 and 209,954,540.40 is: 314,931,810.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,536,121.20 : 330,804,181.80 = 209,954,540.40 : x
  2. Step 2: Convert to fraction form
    220,536,121.20/330,804,181.80 = 209,954,540.40/x
  3. Step 3: Cross multiply
    220,536,121.20x = 330,804,181.80 × 209,954,540.40
  4. Step 4: Simplify right side
    220,536,121.20x = 69,453,839,952,217,048
  5. Step 5: Solve for x
    x = 69,453,839,952,217,048/220,536,121.20
  6. Step 6: Final answer
    x = 314,931,810.60

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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.