Home / 8,100,859.80-12,151,289.70-7,485,000.60

Finding the Fourth Proportional to 8,100,859.80, 12,151,289.70 and 7,485,000.60

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Solution

The fourth proportional to 8,100,859.80, 12,151,289.70 and 7,485,000.60 is: 11,227,500.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100,859.80 : 12,151,289.70 = 7,485,000.60 : x
  2. Step 2: Convert to fraction form
    8,100,859.80/12,151,289.70 = 7,485,000.60/x
  3. Step 3: Cross multiply
    8,100,859.80x = 12,151,289.70 × 7,485,000.60
  4. Step 4: Simplify right side
    8,100,859.80x = 90,952,410,695,273.81
  5. Step 5: Solve for x
    x = 90,952,410,695,273.81/8,100,859.80
  6. Step 6: Final answer
    x = 11,227,500.90

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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.