Home / 3,621,638.28-4,997,844.45-1,990,040.90

Finding the Fourth Proportional to 3,621,638.28, 4,997,844.45 and 1,990,040.90

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Solution

The fourth proportional to 3,621,638.28, 4,997,844.45 and 1,990,040.90 is: 2,746,247.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621,638.28 : 4,997,844.45 = 1,990,040.90 : x
  2. Step 2: Convert to fraction form
    3,621,638.28/4,997,844.45 = 1,990,040.90/x
  3. Step 3: Cross multiply
    3,621,638.28x = 4,997,844.45 × 1,990,040.90
  4. Step 4: Simplify right side
    3,621,638.28x = 9,945,914,879,832.62
  5. Step 5: Solve for x
    x = 9,945,914,879,832.62/3,621,638.28
  6. Step 6: Final answer
    x = 2,746,247.45

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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.