Home / 20,975,267.57-28,945,423.05-11,682,809.06

Finding the Fourth Proportional to 20,975,267.57, 28,945,423.05 and 11,682,809.06

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Solution

The fourth proportional to 20,975,267.57, 28,945,423.05 and 11,682,809.06 is: 16,122,027.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,975,267.57 : 28,945,423.05 = 11,682,809.06 : x
  2. Step 2: Convert to fraction form
    20,975,267.57/28,945,423.05 = 11,682,809.06/x
  3. Step 3: Cross multiply
    20,975,267.57x = 28,945,423.05 × 11,682,809.06
  4. Step 4: Simplify right side
    20,975,267.57x = 338,163,850,654,072.88
  5. Step 5: Solve for x
    x = 338,163,850,654,072.88/20,975,267.57
  6. Step 6: Final answer
    x = 16,122,027.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.