Home / 12,979,340.33-17,913,885.78-8,338,926.24

Finding the Fourth Proportional to 12,979,340.33, 17,913,885.78 and 8,338,926.24

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Solution

The fourth proportional to 12,979,340.33, 17,913,885.78 and 8,338,926.24 is: 11,509,257.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,979,340.33 : 17,913,885.78 = 8,338,926.24 : x
  2. Step 2: Convert to fraction form
    12,979,340.33/17,913,885.78 = 8,338,926.24/x
  3. Step 3: Cross multiply
    12,979,340.33x = 17,913,885.78 × 8,338,926.24
  4. Step 4: Simplify right side
    12,979,340.33x = 149,382,572,222,475.84
  5. Step 5: Solve for x
    x = 149,382,572,222,475.84/12,979,340.33
  6. Step 6: Final answer
    x = 11,509,257.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.