Home / 11,005,128.60-16,507,692.90-8,485,704.60

Finding the Fourth Proportional to 11,005,128.60, 16,507,692.90 and 8,485,704.60

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Solution

The fourth proportional to 11,005,128.60, 16,507,692.90 and 8,485,704.60 is: 12,728,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,005,128.60 : 16,507,692.90 = 8,485,704.60 : x
  2. Step 2: Convert to fraction form
    11,005,128.60/16,507,692.90 = 8,485,704.60/x
  3. Step 3: Cross multiply
    11,005,128.60x = 16,507,692.90 × 8,485,704.60
  4. Step 4: Simplify right side
    11,005,128.60x = 140,079,405,576,917.34
  5. Step 5: Solve for x
    x = 140,079,405,576,917.34/11,005,128.60
  6. Step 6: Final answer
    x = 12,728,556.90

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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.