Home / 12,269,738.60-18,404,435.10-5,538,141.80

Finding the Fourth Proportional to 12,269,738.60, 18,404,435.10 and 5,538,141.80

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Solution

The fourth proportional to 12,269,738.60, 18,404,435.10 and 5,538,141.80 is: 8,307,134.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,269,738.60 : 18,404,435.10 = 5,538,141.80 : x
  2. Step 2: Convert to fraction form
    12,269,738.60/18,404,435.10 = 5,538,141.80/x
  3. Step 3: Cross multiply
    12,269,738.60x = 18,404,435.10 × 5,538,141.80
  4. Step 4: Simplify right side
    12,269,738.60x = 101,926,371,332,697.19
  5. Step 5: Solve for x
    x = 101,926,371,332,697.19/12,269,738.60
  6. Step 6: Final answer
    x = 8,307,134.70

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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.