Home / 20,728,012.07-31,096,003.30-7,947,520.09

Finding the Fourth Proportional to 20,728,012.07, 31,096,003.30 and 7,947,520.09

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Solution

The fourth proportional to 20,728,012.07, 31,096,003.30 and 7,947,520.09 is: 11,922,808.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,728,012.07 : 31,096,003.30 = 7,947,520.09 : x
  2. Step 2: Convert to fraction form
    20,728,012.07/31,096,003.30 = 7,947,520.09/x
  3. Step 3: Cross multiply
    20,728,012.07x = 31,096,003.30 × 7,947,520.09
  4. Step 4: Simplify right side
    20,728,012.07x = 247,136,110,847,847.50
  5. Step 5: Solve for x
    x = 247,136,110,847,847.50/20,728,012.07
  6. Step 6: Final answer
    x = 11,922,808.13

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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.