Home / 12,253,678.76-18,382,513.05-3,618,652.57

Finding the Fourth Proportional to 12,253,678.76, 18,382,513.05 and 3,618,652.57

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Solution

The fourth proportional to 12,253,678.76, 18,382,513.05 and 3,618,652.57 is: 5,428,567.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253,678.76 : 18,382,513.05 = 3,618,652.57 : x
  2. Step 2: Convert to fraction form
    12,253,678.76/18,382,513.05 = 3,618,652.57/x
  3. Step 3: Cross multiply
    12,253,678.76x = 18,382,513.05 × 3,618,652.57
  4. Step 4: Simplify right side
    12,253,678.76x = 66,519,928,073,347.78
  5. Step 5: Solve for x
    x = 66,519,928,073,347.78/12,253,678.76
  6. Step 6: Final answer
    x = 5,428,567.97

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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.