Home / 220,536,396.20-330,804,594.30-209,954,815.40

Finding the Fourth Proportional to 220,536,396.20, 330,804,594.30 and 209,954,815.40

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Solution

The fourth proportional to 220,536,396.20, 330,804,594.30 and 209,954,815.40 is: 314,932,223.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,536,396.20 : 330,804,594.30 = 209,954,815.40 : x
  2. Step 2: Convert to fraction form
    220,536,396.20/330,804,594.30 = 209,954,815.40/x
  3. Step 3: Cross multiply
    220,536,396.20x = 330,804,594.30 × 209,954,815.40
  4. Step 4: Simplify right side
    220,536,396.20x = 69,454,017,529,728,400
  5. Step 5: Solve for x
    x = 69,454,017,529,728,400/220,536,396.20
  6. Step 6: Final answer
    x = 314,932,223.10

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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.