Home / 5,175,967.11-7,142,738.94-2,821,185.15

Finding the Fourth Proportional to 5,175,967.11, 7,142,738.94 and 2,821,185.15

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Solution

The fourth proportional to 5,175,967.11, 7,142,738.94 and 2,821,185.15 is: 3,893,183.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,175,967.11 : 7,142,738.94 = 2,821,185.15 : x
  2. Step 2: Convert to fraction form
    5,175,967.11/7,142,738.94 = 2,821,185.15/x
  3. Step 3: Cross multiply
    5,175,967.11x = 7,142,738.94 × 2,821,185.15
  4. Step 4: Simplify right side
    5,175,967.11x = 20,150,989,027,854.74
  5. Step 5: Solve for x
    x = 20,150,989,027,854.74/5,175,967.11
  6. Step 6: Final answer
    x = 3,893,183.36

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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.