Home / 12,057,796.80-18,086,695.20-8,231,421.60

Finding the Fourth Proportional to 12,057,796.80, 18,086,695.20 and 8,231,421.60

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Solution

The fourth proportional to 12,057,796.80, 18,086,695.20 and 8,231,421.60 is: 12,347,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,057,796.80 : 18,086,695.20 = 8,231,421.60 : x
  2. Step 2: Convert to fraction form
    12,057,796.80/18,086,695.20 = 8,231,421.60/x
  3. Step 3: Cross multiply
    12,057,796.80x = 18,086,695.20 × 8,231,421.60
  4. Step 4: Simplify right side
    12,057,796.80x = 148,879,213,541,896.31
  5. Step 5: Solve for x
    x = 148,879,213,541,896.31/12,057,796.80
  6. Step 6: Final answer
    x = 12,347,132.40

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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.