Home / 20,800,829.70-31,206,558.96-8,017,902.18

Finding the Fourth Proportional to 20,800,829.70, 31,206,558.96 and 8,017,902.18

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Solution

The fourth proportional to 20,800,829.70, 31,206,558.96 and 8,017,902.18 is: 12,028,901.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,800,829.70 : 31,206,558.96 = 8,017,902.18 : x
  2. Step 2: Convert to fraction form
    20,800,829.70/31,206,558.96 = 8,017,902.18/x
  3. Step 3: Cross multiply
    20,800,829.70x = 31,206,558.96 × 8,017,902.18
  4. Step 4: Simplify right side
    20,800,829.70x = 250,211,137,115,682.53
  5. Step 5: Solve for x
    x = 250,211,137,115,682.53/20,800,829.70
  6. Step 6: Final answer
    x = 12,028,901.77

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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.