Home / 12,188,863.21-18,289,285.83-4,902,032.08

Finding the Fourth Proportional to 12,188,863.21, 18,289,285.83 and 4,902,032.08

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Solution

The fourth proportional to 12,188,863.21, 18,289,285.83 and 4,902,032.08 is: 7,355,457.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188,863.21 : 18,289,285.83 = 4,902,032.08 : x
  2. Step 2: Convert to fraction form
    12,188,863.21/18,289,285.83 = 4,902,032.08/x
  3. Step 3: Cross multiply
    12,188,863.21x = 18,289,285.83 × 4,902,032.08
  4. Step 4: Simplify right side
    12,188,863.21x = 89,654,665,858,949.42
  5. Step 5: Solve for x
    x = 89,654,665,858,949.42/12,188,863.21
  6. Step 6: Final answer
    x = 7,355,457.54

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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.