Home / 5,179,921.84-7,148,380.98-2,857,081.06

Finding the Fourth Proportional to 5,179,921.84, 7,148,380.98 and 2,857,081.06

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Solution

The fourth proportional to 5,179,921.84, 7,148,380.98 and 2,857,081.06 is: 3,942,820.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179,921.84 : 7,148,380.98 = 2,857,081.06 : x
  2. Step 2: Convert to fraction form
    5,179,921.84/7,148,380.98 = 2,857,081.06/x
  3. Step 3: Cross multiply
    5,179,921.84x = 7,148,380.98 × 2,857,081.06
  4. Step 4: Simplify right side
    5,179,921.84x = 20,423,503,907,622.24
  5. Step 5: Solve for x
    x = 20,423,503,907,622.24/5,179,921.84
  6. Step 6: Final answer
    x = 3,942,820.86

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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.