Home / 13,790,729.22-20,678,910.53-5,147,721.96

Finding the Fourth Proportional to 13,790,729.22, 20,678,910.53 and 5,147,721.96

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Solution

The fourth proportional to 13,790,729.22, 20,678,910.53 and 5,147,721.96 is: 7,718,901.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790,729.22 : 20,678,910.53 = 5,147,721.96 : x
  2. Step 2: Convert to fraction form
    13,790,729.22/20,678,910.53 = 5,147,721.96/x
  3. Step 3: Cross multiply
    13,790,729.22x = 20,678,910.53 × 5,147,721.96
  4. Step 4: Simplify right side
    13,790,729.22x = 106,449,281,740,871.70
  5. Step 5: Solve for x
    x = 106,449,281,740,871.70/13,790,729.22
  6. Step 6: Final answer
    x = 7,718,901.59

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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.