Home / 20,883,079.80-31,325,469.06-9,947,647.92

Finding the Fourth Proportional to 20,883,079.80, 31,325,469.06 and 9,947,647.92

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Solution

The fourth proportional to 20,883,079.80, 31,325,469.06 and 9,947,647.92 is: 14,921,876.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883,079.80 : 31,325,469.06 = 9,947,647.92 : x
  2. Step 2: Convert to fraction form
    20,883,079.80/31,325,469.06 = 9,947,647.92/x
  3. Step 3: Cross multiply
    20,883,079.80x = 31,325,469.06 × 9,947,647.92
  4. Step 4: Simplify right side
    20,883,079.80x = 311,614,737,137,733.31
  5. Step 5: Solve for x
    x = 311,614,737,137,733.31/20,883,079.80
  6. Step 6: Final answer
    x = 14,921,876.47

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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.