Home / 13,419,455.40-20,139,680.70-6,231,879.90

Finding the Fourth Proportional to 13,419,455.40, 20,139,680.70 and 6,231,879.90

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Solution

The fourth proportional to 13,419,455.40, 20,139,680.70 and 6,231,879.90 is: 9,352,694.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419,455.40 : 20,139,680.70 = 6,231,879.90 : x
  2. Step 2: Convert to fraction form
    13,419,455.40/20,139,680.70 = 6,231,879.90/x
  3. Step 3: Cross multiply
    13,419,455.40x = 20,139,680.70 × 6,231,879.90
  4. Step 4: Simplify right side
    13,419,455.40x = 125,508,071,346,747.94
  5. Step 5: Solve for x
    x = 125,508,071,346,747.94/13,419,455.40
  6. Step 6: Final answer
    x = 9,352,694.85

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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.