Home / 12,200,571.57-18,294,602.49-6,446,399.61

Finding the Fourth Proportional to 12,200,571.57, 18,294,602.49 and 6,446,399.61

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Solution

The fourth proportional to 12,200,571.57, 18,294,602.49 and 6,446,399.61 is: 9,666,294.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,200,571.57 : 18,294,602.49 = 6,446,399.61 : x
  2. Step 2: Convert to fraction form
    12,200,571.57/18,294,602.49 = 6,446,399.61/x
  3. Step 3: Cross multiply
    12,200,571.57x = 18,294,602.49 × 6,446,399.61
  4. Step 4: Simplify right side
    12,200,571.57x = 117,934,318,356,641.03
  5. Step 5: Solve for x
    x = 117,934,318,356,641.03/12,200,571.57
  6. Step 6: Final answer
    x = 9,666,294.54

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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.