Home / 28,454,915.43-42,689,163.42-9,285,708.15

Finding the Fourth Proportional to 28,454,915.43, 42,689,163.42 and 9,285,708.15

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Solution

The fourth proportional to 28,454,915.43, 42,689,163.42 and 9,285,708.15 is: 13,930,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,454,915.43 : 42,689,163.42 = 9,285,708.15 : x
  2. Step 2: Convert to fraction form
    28,454,915.43/42,689,163.42 = 9,285,708.15/x
  3. Step 3: Cross multiply
    28,454,915.43x = 42,689,163.42 × 9,285,708.15
  4. Step 4: Simplify right side
    28,454,915.43x = 396,399,112,685,775.88
  5. Step 5: Solve for x
    x = 396,399,112,685,775.88/28,454,915.43
  6. Step 6: Final answer
    x = 13,930,778.10

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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.