Home / 12,530,431.26-18,795,663.36-3,432,609.72

Finding the Fourth Proportional to 12,530,431.26, 18,795,663.36 and 3,432,609.72

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Solution

The fourth proportional to 12,530,431.26, 18,795,663.36 and 3,432,609.72 is: 5,148,919.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530,431.26 : 18,795,663.36 = 3,432,609.72 : x
  2. Step 2: Convert to fraction form
    12,530,431.26/18,795,663.36 = 3,432,609.72/x
  3. Step 3: Cross multiply
    12,530,431.26x = 18,795,663.36 × 3,432,609.72
  4. Step 4: Simplify right side
    12,530,431.26x = 64,518,176,743,383.86
  5. Step 5: Solve for x
    x = 64,518,176,743,383.86/12,530,431.26
  6. Step 6: Final answer
    x = 5,148,919.09

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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.