Home / 20,188,835.67-27,860,451.51-11,021,478.42

Finding the Fourth Proportional to 20,188,835.67, 27,860,451.51 and 11,021,478.42

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Solution

The fourth proportional to 20,188,835.67, 27,860,451.51 and 11,021,478.42 is: 15,209,562.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,835.67 : 27,860,451.51 = 11,021,478.42 : x
  2. Step 2: Convert to fraction form
    20,188,835.67/27,860,451.51 = 11,021,478.42/x
  3. Step 3: Cross multiply
    20,188,835.67x = 27,860,451.51 × 11,021,478.42
  4. Step 4: Simplify right side
    20,188,835.67x = 307,063,365,156,816.31
  5. Step 5: Solve for x
    x = 307,063,365,156,816.31/20,188,835.67
  6. Step 6: Final answer
    x = 15,209,562.86

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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.