Home / 2,186,681.80-3,280,022.70-2,113,198.60

Finding the Fourth Proportional to 2,186,681.80, 3,280,022.70 and 2,113,198.60

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Solution

The fourth proportional to 2,186,681.80, 3,280,022.70 and 2,113,198.60 is: 3,169,797.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186,681.80 : 3,280,022.70 = 2,113,198.60 : x
  2. Step 2: Convert to fraction form
    2,186,681.80/3,280,022.70 = 2,113,198.60/x
  3. Step 3: Cross multiply
    2,186,681.80x = 3,280,022.70 × 2,113,198.60
  4. Step 4: Simplify right side
    2,186,681.80x = 6,931,339,377,608.22
  5. Step 5: Solve for x
    x = 6,931,339,377,608.22/2,186,681.80
  6. Step 6: Final answer
    x = 3,169,797.90

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.