Home / 3,621,183.72-4,997,223.69-1,989,627.05

Finding the Fourth Proportional to 3,621,183.72, 4,997,223.69 and 1,989,627.05

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Solution

The fourth proportional to 3,621,183.72, 4,997,223.69 and 1,989,627.05 is: 2,745,679.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621,183.72 : 4,997,223.69 = 1,989,627.05 : x
  2. Step 2: Convert to fraction form
    3,621,183.72/4,997,223.69 = 1,989,627.05/x
  3. Step 3: Cross multiply
    3,621,183.72x = 4,997,223.69 × 1,989,627.05
  4. Step 4: Simplify right side
    3,621,183.72x = 9,942,611,422,234.87
  5. Step 5: Solve for x
    x = 9,942,611,422,234.87/3,621,183.72
  6. Step 6: Final answer
    x = 2,745,679.92

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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.