Home / 18,330,438.80-27,511,404.60-8,111,025.20

Finding the Fourth Proportional to 18,330,438.80, 27,511,404.60 and 8,111,025.20

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Solution

The fourth proportional to 18,330,438.80, 27,511,404.60 and 8,111,025.20 is: 12,173,505.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,330,438.80 : 27,511,404.60 = 8,111,025.20 : x
  2. Step 2: Convert to fraction form
    18,330,438.80/27,511,404.60 = 8,111,025.20/x
  3. Step 3: Cross multiply
    18,330,438.80x = 27,511,404.60 × 8,111,025.20
  4. Step 4: Simplify right side
    18,330,438.80x = 223,145,695,997,995.94
  5. Step 5: Solve for x
    x = 223,145,695,997,995.94/18,330,438.80
  6. Step 6: Final answer
    x = 12,173,505.42

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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.