Home / 20,654,485.90-28,503,032.92-11,361,855.87

Finding the Fourth Proportional to 20,654,485.90, 28,503,032.92 and 11,361,855.87

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Solution

The fourth proportional to 20,654,485.90, 28,503,032.92 and 11,361,855.87 is: 15,679,274.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,654,485.90 : 28,503,032.92 = 11,361,855.87 : x
  2. Step 2: Convert to fraction form
    20,654,485.90/28,503,032.92 = 11,361,855.87/x
  3. Step 3: Cross multiply
    20,654,485.90x = 28,503,032.92 × 11,361,855.87
  4. Step 4: Simplify right side
    20,654,485.90x = 323,847,351,866,500.56
  5. Step 5: Solve for x
    x = 323,847,351,866,500.56/20,654,485.90
  6. Step 6: Final answer
    x = 15,679,274.39

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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.