Home / 7,638,819.78-11,451,110.97-5,243,792.34

Finding the Fourth Proportional to 7,638,819.78, 11,451,110.97 and 5,243,792.34

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Solution

The fourth proportional to 7,638,819.78, 11,451,110.97 and 5,243,792.34 is: 7,860,801.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638,819.78 : 11,451,110.97 = 5,243,792.34 : x
  2. Step 2: Convert to fraction form
    7,638,819.78/11,451,110.97 = 5,243,792.34/x
  3. Step 3: Cross multiply
    7,638,819.78x = 11,451,110.97 × 5,243,792.34
  4. Step 4: Simplify right side
    7,638,819.78x = 60,047,247,988,975.97
  5. Step 5: Solve for x
    x = 60,047,247,988,975.97/7,638,819.78
  6. Step 6: Final answer
    x = 7,860,801.76

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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.