Home / 28,378,351.41-39,162,123.44-15,325,609.06

Finding the Fourth Proportional to 28,378,351.41, 39,162,123.44 and 15,325,609.06

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Solution

The fourth proportional to 28,378,351.41, 39,162,123.44 and 15,325,609.06 is: 21,149,339.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,378,351.41 : 39,162,123.44 = 15,325,609.06 : x
  2. Step 2: Convert to fraction form
    28,378,351.41/39,162,123.44 = 15,325,609.06/x
  3. Step 3: Cross multiply
    28,378,351.41x = 39,162,123.44 × 15,325,609.06
  4. Step 4: Simplify right side
    28,378,351.41x = 600,183,393,724,274.38
  5. Step 5: Solve for x
    x = 600,183,393,724,274.38/28,378,351.41
  6. Step 6: Final answer
    x = 21,149,339.69

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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.