Home / 20,394,676.80-28,145,456.64-11,228,172.48

Finding the Fourth Proportional to 20,394,676.80, 28,145,456.64 and 11,228,172.48

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Solution

The fourth proportional to 20,394,676.80, 28,145,456.64 and 11,228,172.48 is: 15,495,319.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,394,676.80 : 28,145,456.64 = 11,228,172.48 : x
  2. Step 2: Convert to fraction form
    20,394,676.80/28,145,456.64 = 11,228,172.48/x
  3. Step 3: Cross multiply
    20,394,676.80x = 28,145,456.64 × 11,228,172.48
  4. Step 4: Simplify right side
    20,394,676.80x = 316,022,041,682,281.31
  5. Step 5: Solve for x
    x = 316,022,041,682,281.31/20,394,676.80
  6. Step 6: Final answer
    x = 15,495,319.92

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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.