Home / 13,258,975.76-18,297,575.28-7,826,467.76

Finding the Fourth Proportional to 13,258,975.76, 18,297,575.28 and 7,826,467.76

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Solution

The fourth proportional to 13,258,975.76, 18,297,575.28 and 7,826,467.76 is: 10,800,636.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258,975.76 : 18,297,575.28 = 7,826,467.76 : x
  2. Step 2: Convert to fraction form
    13,258,975.76/18,297,575.28 = 7,826,467.76/x
  3. Step 3: Cross multiply
    13,258,975.76x = 18,297,575.28 × 7,826,467.76
  4. Step 4: Simplify right side
    13,258,975.76x = 143,205,383,015,092.97
  5. Step 5: Solve for x
    x = 143,205,383,015,092.97/13,258,975.76
  6. Step 6: Final answer
    x = 10,800,636.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.