Home / 18,694,468.80-28,049,576.40-10,180,915.20

Finding the Fourth Proportional to 18,694,468.80, 28,049,576.40 and 10,180,915.20

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Solution

The fourth proportional to 18,694,468.80, 28,049,576.40 and 10,180,915.20 is: 15,275,660.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,694,468.80 : 28,049,576.40 = 10,180,915.20 : x
  2. Step 2: Convert to fraction form
    18,694,468.80/28,049,576.40 = 10,180,915.20/x
  3. Step 3: Cross multiply
    18,694,468.80x = 28,049,576.40 × 10,180,915.20
  4. Step 4: Simplify right side
    18,694,468.80x = 285,570,358,724,321.25
  5. Step 5: Solve for x
    x = 285,570,358,724,321.25/18,694,468.80
  6. Step 6: Final answer
    x = 15,275,660.51

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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.