Home / 3,918,521.56-5,407,738.95-2,176,198.80

Finding the Fourth Proportional to 3,918,521.56, 5,407,738.95 and 2,176,198.80

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Solution

The fourth proportional to 3,918,521.56, 5,407,738.95 and 2,176,198.80 is: 3,003,253.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,521.56 : 5,407,738.95 = 2,176,198.80 : x
  2. Step 2: Convert to fraction form
    3,918,521.56/5,407,738.95 = 2,176,198.80/x
  3. Step 3: Cross multiply
    3,918,521.56x = 5,407,738.95 × 2,176,198.80
  4. Step 4: Simplify right side
    3,918,521.56x = 11,768,315,005,542.51
  5. Step 5: Solve for x
    x = 11,768,315,005,542.51/3,918,521.56
  6. Step 6: Final answer
    x = 3,003,253.86

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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.