Home / 139,479,819.03-192,483,920.88-76,763,138.04

Finding the Fourth Proportional to 139,479,819.03, 192,483,920.88 and 76,763,138.04

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Solution

The fourth proportional to 139,479,819.03, 192,483,920.88 and 76,763,138.04 is: 105,934,104.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,479,819.03 : 192,483,920.88 = 76,763,138.04 : x
  2. Step 2: Convert to fraction form
    139,479,819.03/192,483,920.88 = 76,763,138.04/x
  3. Step 3: Cross multiply
    139,479,819.03x = 192,483,920.88 × 76,763,138.04
  4. Step 4: Simplify right side
    139,479,819.03x = 14,775,669,788,991,880
  5. Step 5: Solve for x
    x = 14,775,669,788,991,880/139,479,819.03
  6. Step 6: Final answer
    x = 105,934,104.96

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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.