Home / 20,874,632.97-31,279,991.21-8,737,488.28

Finding the Fourth Proportional to 20,874,632.97, 31,279,991.21 and 8,737,488.28

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Solution

The fourth proportional to 20,874,632.97, 31,279,991.21 and 8,737,488.28 is: 13,092,855.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,874,632.97 : 31,279,991.21 = 8,737,488.28 : x
  2. Step 2: Convert to fraction form
    20,874,632.97/31,279,991.21 = 8,737,488.28/x
  3. Step 3: Cross multiply
    20,874,632.97x = 31,279,991.21 × 8,737,488.28
  4. Step 4: Simplify right side
    20,874,632.97x = 273,308,556,595,878
  5. Step 5: Solve for x
    x = 273,308,556,595,878/20,874,632.97
  6. Step 6: Final answer
    x = 13,092,855.67

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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.