Home / 3,809,780-5,257,499.96-2,178,221.53

Finding the Fourth Proportional to 3,809,780, 5,257,499.96 and 2,178,221.53

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Solution

The fourth proportional to 3,809,780, 5,257,499.96 and 2,178,221.53 is: 3,005,947.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809,780 : 5,257,499.96 = 2,178,221.53 : x
  2. Step 2: Convert to fraction form
    3,809,780/5,257,499.96 = 2,178,221.53/x
  3. Step 3: Cross multiply
    3,809,780x = 5,257,499.96 × 2,178,221.53
  4. Step 4: Simplify right side
    3,809,780x = 11,451,999,606,846.14
  5. Step 5: Solve for x
    x = 11,451,999,606,846.14/3,809,780
  6. Step 6: Final answer
    x = 3,005,947.75

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1.5x scale

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.