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Finding the Fourth Proportional to 262,925,787.20, 394,388,680.80 and 262,925,787.20

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Solution

The fourth proportional to 262,925,787.20, 394,388,680.80 and 262,925,787.20 is: 394,388,680.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,925,787.20 : 394,388,680.80 = 262,925,787.20 : x
  2. Step 2: Convert to fraction form
    262,925,787.20/394,388,680.80 = 262,925,787.20/x
  3. Step 3: Cross multiply
    262,925,787.20x = 394,388,680.80 × 262,925,787.20
  4. Step 4: Simplify right side
    262,925,787.20x = 103,694,954,362,109,520
  5. Step 5: Solve for x
    x = 103,694,954,362,109,520/262,925,787.20
  6. Step 6: Final answer
    x = 394,388,680.80

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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.