Home / 18,949,915.20-28,424,872.80-16,965,868.80

Finding the Fourth Proportional to 18,949,915.20, 28,424,872.80 and 16,965,868.80

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Solution

The fourth proportional to 18,949,915.20, 28,424,872.80 and 16,965,868.80 is: 25,448,803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,949,915.20 : 28,424,872.80 = 16,965,868.80 : x
  2. Step 2: Convert to fraction form
    18,949,915.20/28,424,872.80 = 16,965,868.80/x
  3. Step 3: Cross multiply
    18,949,915.20x = 28,424,872.80 × 16,965,868.80
  4. Step 4: Simplify right side
    18,949,915.20x = 482,252,662,581,488.69
  5. Step 5: Solve for x
    x = 482,252,662,581,488.69/18,949,915.20
  6. Step 6: Final answer
    x = 25,448,803.20

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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.