Home / 3,818,880.15-5,270,189.90-2,100,131.43

Finding the Fourth Proportional to 3,818,880.15, 5,270,189.90 and 2,100,131.43

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Solution

The fourth proportional to 3,818,880.15, 5,270,189.90 and 2,100,131.43 is: 2,898,255.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,818,880.15 : 5,270,189.90 = 2,100,131.43 : x
  2. Step 2: Convert to fraction form
    3,818,880.15/5,270,189.90 = 2,100,131.43/x
  3. Step 3: Cross multiply
    3,818,880.15x = 5,270,189.90 × 2,100,131.43
  4. Step 4: Simplify right side
    3,818,880.15x = 11,068,091,451,058.56
  5. Step 5: Solve for x
    x = 11,068,091,451,058.56/3,818,880.15
  6. Step 6: Final answer
    x = 2,898,255.78

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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.