Home / 8,130,819.60-12,196,229.40-2,147,187.60

Finding the Fourth Proportional to 8,130,819.60, 12,196,229.40 and 2,147,187.60

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Solution

The fourth proportional to 8,130,819.60, 12,196,229.40 and 2,147,187.60 is: 3,220,781.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130,819.60 : 12,196,229.40 = 2,147,187.60 : x
  2. Step 2: Convert to fraction form
    8,130,819.60/12,196,229.40 = 2,147,187.60/x
  3. Step 3: Cross multiply
    8,130,819.60x = 12,196,229.40 × 2,147,187.60
  4. Step 4: Simplify right side
    8,130,819.60x = 26,187,592,534,435.44
  5. Step 5: Solve for x
    x = 26,187,592,534,435.44/8,130,819.60
  6. Step 6: Final answer
    x = 3,220,781.40

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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.