Home / 8,085,354.80-12,128,032.20-5,380,910.60

Finding the Fourth Proportional to 8,085,354.80, 12,128,032.20 and 5,380,910.60

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Solution

The fourth proportional to 8,085,354.80, 12,128,032.20 and 5,380,910.60 is: 8,071,365.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,354.80 : 12,128,032.20 = 5,380,910.60 : x
  2. Step 2: Convert to fraction form
    8,085,354.80/12,128,032.20 = 5,380,910.60/x
  3. Step 3: Cross multiply
    8,085,354.80x = 12,128,032.20 × 5,380,910.60
  4. Step 4: Simplify right side
    8,085,354.80x = 65,259,857,022,121.31
  5. Step 5: Solve for x
    x = 65,259,857,022,121.31/8,085,354.80
  6. Step 6: Final answer
    x = 8,071,365.90

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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.