Home / 12,129,622.92-18,183,722.94-4,947,165

Finding the Fourth Proportional to 12,129,622.92, 18,183,722.94 and 4,947,165

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Solution

The fourth proportional to 12,129,622.92, 18,183,722.94 and 4,947,165 is: 7,416,378.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,622.92 : 18,183,722.94 = 4,947,165 : x
  2. Step 2: Convert to fraction form
    12,129,622.92/18,183,722.94 = 4,947,165/x
  3. Step 3: Cross multiply
    12,129,622.92x = 18,183,722.94 × 4,947,165
  4. Step 4: Simplify right side
    12,129,622.92x = 89,957,877,698,465.11
  5. Step 5: Solve for x
    x = 89,957,877,698,465.11/12,129,622.92
  6. Step 6: Final answer
    x = 7,416,378.75

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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.