Home / 3,809,780.13-5,257,500.14-2,178,221.66

Finding the Fourth Proportional to 3,809,780.13, 5,257,500.14 and 2,178,221.66

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Solution

The fourth proportional to 3,809,780.13, 5,257,500.14 and 2,178,221.66 is: 3,005,947.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809,780.13 : 5,257,500.14 = 2,178,221.66 : x
  2. Step 2: Convert to fraction form
    3,809,780.13/5,257,500.14 = 2,178,221.66/x
  3. Step 3: Cross multiply
    3,809,780.13x = 5,257,500.14 × 2,178,221.66
  4. Step 4: Simplify right side
    3,809,780.13x = 11,452,000,645,222.42
  5. Step 5: Solve for x
    x = 11,452,000,645,222.42/3,809,780.13
  6. Step 6: Final answer
    x = 3,005,947.92

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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.