Home / 8,305,147.20-12,457,720.80-8,193,172.80

Finding the Fourth Proportional to 8,305,147.20, 12,457,720.80 and 8,193,172.80

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Solution

The fourth proportional to 8,305,147.20, 12,457,720.80 and 8,193,172.80 is: 12,289,759.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305,147.20 : 12,457,720.80 = 8,193,172.80 : x
  2. Step 2: Convert to fraction form
    8,305,147.20/12,457,720.80 = 8,193,172.80/x
  3. Step 3: Cross multiply
    8,305,147.20x = 12,457,720.80 × 8,193,172.80
  4. Step 4: Simplify right side
    8,305,147.20x = 102,068,259,208,554.25
  5. Step 5: Solve for x
    x = 102,068,259,208,554.25/8,305,147.20
  6. Step 6: Final answer
    x = 12,289,759.20

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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.