Home / 18,783,046.20-28,174,569.30-9,193,488.60

Finding the Fourth Proportional to 18,783,046.20, 28,174,569.30 and 9,193,488.60

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Solution

The fourth proportional to 18,783,046.20, 28,174,569.30 and 9,193,488.60 is: 13,790,232.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783,046.20 : 28,174,569.30 = 9,193,488.60 : x
  2. Step 2: Convert to fraction form
    18,783,046.20/28,174,569.30 = 9,193,488.60/x
  3. Step 3: Cross multiply
    18,783,046.20x = 28,174,569.30 × 9,193,488.60
  4. Step 4: Simplify right side
    18,783,046.20x = 259,022,581,669,459.97
  5. Step 5: Solve for x
    x = 259,022,581,669,459.97/18,783,046.20
  6. Step 6: Final answer
    x = 13,790,232.90

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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.