Home / 21,096,610.82-31,646,141.32-8,142,834.86

Finding the Fourth Proportional to 21,096,610.82, 31,646,141.32 and 8,142,834.86

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Solution

The fourth proportional to 21,096,610.82, 31,646,141.32 and 8,142,834.86 is: 12,214,725.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,096,610.82 : 31,646,141.32 = 8,142,834.86 : x
  2. Step 2: Convert to fraction form
    21,096,610.82/31,646,141.32 = 8,142,834.86/x
  3. Step 3: Cross multiply
    21,096,610.82x = 31,646,141.32 × 8,142,834.86
  4. Step 4: Simplify right side
    21,096,610.82x = 257,689,302,724,982.44
  5. Step 5: Solve for x
    x = 257,689,302,724,982.44/21,096,610.82
  6. Step 6: Final answer
    x = 12,214,725.15

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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.