Home / 3,899,496.60-5,381,204.61-2,157,120.59

Finding the Fourth Proportional to 3,899,496.60, 5,381,204.61 and 2,157,120.59

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Solution

The fourth proportional to 3,899,496.60, 5,381,204.61 and 2,157,120.59 is: 2,976,770.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899,496.60 : 5,381,204.61 = 2,157,120.59 : x
  2. Step 2: Convert to fraction form
    3,899,496.60/5,381,204.61 = 2,157,120.59/x
  3. Step 3: Cross multiply
    3,899,496.60x = 5,381,204.61 × 2,157,120.59
  4. Step 4: Simplify right side
    3,899,496.60x = 11,607,907,236,327.90
  5. Step 5: Solve for x
    x = 11,607,907,236,327.90/3,899,496.60
  6. Step 6: Final answer
    x = 2,976,770.70

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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.