Home / 2,191,190.40-3,286,785.60-2,107,209.60

Finding the Fourth Proportional to 2,191,190.40, 3,286,785.60 and 2,107,209.60

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Solution

The fourth proportional to 2,191,190.40, 3,286,785.60 and 2,107,209.60 is: 3,160,814.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,190.40 : 3,286,785.60 = 2,107,209.60 : x
  2. Step 2: Convert to fraction form
    2,191,190.40/3,286,785.60 = 2,107,209.60/x
  3. Step 3: Cross multiply
    2,191,190.40x = 3,286,785.60 × 2,107,209.60
  4. Step 4: Simplify right side
    2,191,190.40x = 6,925,946,169,461.76
  5. Step 5: Solve for x
    x = 6,925,946,169,461.76/2,191,190.40
  6. Step 6: Final answer
    x = 3,160,814.40

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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.