Home / 18,405,933.40-27,608,640.90-8,308,538.20

Finding the Fourth Proportional to 18,405,933.40, 27,608,640.90 and 8,308,538.20

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Solution

The fourth proportional to 18,405,933.40, 27,608,640.90 and 8,308,538.20 is: 12,462,690.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405,933.40 : 27,608,640.90 = 8,308,538.20 : x
  2. Step 2: Convert to fraction form
    18,405,933.40/27,608,640.90 = 8,308,538.20/x
  3. Step 3: Cross multiply
    18,405,933.40x = 27,608,640.90 × 8,308,538.20
  4. Step 4: Simplify right side
    18,405,933.40x = 229,387,447,567,732.38
  5. Step 5: Solve for x
    x = 229,387,447,567,732.38/18,405,933.40
  6. Step 6: Final answer
    x = 12,462,690.30

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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.