Home / 3,168,140.88-4,372,120.39-1,791,690.43

Finding the Fourth Proportional to 3,168,140.88, 4,372,120.39 and 1,791,690.43

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Solution

The fourth proportional to 3,168,140.88, 4,372,120.39 and 1,791,690.43 is: 2,472,581.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168,140.88 : 4,372,120.39 = 1,791,690.43 : x
  2. Step 2: Convert to fraction form
    3,168,140.88/4,372,120.39 = 1,791,690.43/x
  3. Step 3: Cross multiply
    3,168,140.88x = 4,372,120.39 × 1,791,690.43
  4. Step 4: Simplify right side
    3,168,140.88x = 7,833,486,250,159.35
  5. Step 5: Solve for x
    x = 7,833,486,250,159.35/3,168,140.88
  6. Step 6: Final answer
    x = 2,472,581.41

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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.