Home / 3,918,997.91-5,408,033.04-2,176,780.25

Finding the Fourth Proportional to 3,918,997.91, 5,408,033.04 and 2,176,780.25

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Solution

The fourth proportional to 3,918,997.91, 5,408,033.04 and 2,176,780.25 is: 3,003,854.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,997.91 : 5,408,033.04 = 2,176,780.25 : x
  2. Step 2: Convert to fraction form
    3,918,997.91/5,408,033.04 = 2,176,780.25/x
  3. Step 3: Cross multiply
    3,918,997.91x = 5,408,033.04 × 2,176,780.25
  4. Step 4: Simplify right side
    3,918,997.91x = 11,772,099,485,779.29
  5. Step 5: Solve for x
    x = 11,772,099,485,779.29/3,918,997.91
  6. Step 6: Final answer
    x = 3,003,854.50

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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.