Home / 12,303,620.92-18,455,942.49-4,222,153.72

Finding the Fourth Proportional to 12,303,620.92, 18,455,942.49 and 4,222,153.72

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Solution

The fourth proportional to 12,303,620.92, 18,455,942.49 and 4,222,153.72 is: 6,333,405.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303,620.92 : 18,455,942.49 = 4,222,153.72 : x
  2. Step 2: Convert to fraction form
    12,303,620.92/18,455,942.49 = 4,222,153.72/x
  3. Step 3: Cross multiply
    12,303,620.92x = 18,455,942.49 × 4,222,153.72
  4. Step 4: Simplify right side
    12,303,620.92x = 77,923,826,240,259.55
  5. Step 5: Solve for x
    x = 77,923,826,240,259.55/12,303,620.92
  6. Step 6: Final answer
    x = 6,333,405.97

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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.