Home / 8,305,025.60-12,457,538.40-7,801,140.80

Finding the Fourth Proportional to 8,305,025.60, 12,457,538.40 and 7,801,140.80

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Solution

The fourth proportional to 8,305,025.60, 12,457,538.40 and 7,801,140.80 is: 11,701,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305,025.60 : 12,457,538.40 = 7,801,140.80 : x
  2. Step 2: Convert to fraction form
    8,305,025.60/12,457,538.40 = 7,801,140.80/x
  3. Step 3: Cross multiply
    8,305,025.60x = 12,457,538.40 × 7,801,140.80
  4. Step 4: Simplify right side
    8,305,025.60x = 97,183,011,079,806.72
  5. Step 5: Solve for x
    x = 97,183,011,079,806.72/8,305,025.60
  6. Step 6: Final answer
    x = 11,701,711.20

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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.