Home / 20,956,994.92-28,920,604.26-11,789,635.24

Finding the Fourth Proportional to 20,956,994.92, 28,920,604.26 and 11,789,635.24

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Solution

The fourth proportional to 20,956,994.92, 28,920,604.26 and 11,789,635.24 is: 16,269,669.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,994.92 : 28,920,604.26 = 11,789,635.24 : x
  2. Step 2: Convert to fraction form
    20,956,994.92/28,920,604.26 = 11,789,635.24/x
  3. Step 3: Cross multiply
    20,956,994.92x = 28,920,604.26 × 11,789,635.24
  4. Step 4: Simplify right side
    20,956,994.92x = 340,963,375,145,790.12
  5. Step 5: Solve for x
    x = 340,963,375,145,790.12/20,956,994.92
  6. Step 6: Final answer
    x = 16,269,669.22

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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.