Home / 20,737,453.80-31,091,435.10-7,953,018.60

Finding the Fourth Proportional to 20,737,453.80, 31,091,435.10 and 7,953,018.60

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Solution

The fourth proportional to 20,737,453.80, 31,091,435.10 and 7,953,018.60 is: 11,923,872.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737,453.80 : 31,091,435.10 = 7,953,018.60 : x
  2. Step 2: Convert to fraction form
    20,737,453.80/31,091,435.10 = 7,953,018.60/x
  3. Step 3: Cross multiply
    20,737,453.80x = 31,091,435.10 × 7,953,018.60
  4. Step 4: Simplify right side
    20,737,453.80x = 247,270,761,650,992.88
  5. Step 5: Solve for x
    x = 247,270,761,650,992.88/20,737,453.80
  6. Step 6: Final answer
    x = 11,923,872.82

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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.