Home / 20,188,462.78-27,860,051.91-12,945,101.50

Finding the Fourth Proportional to 20,188,462.78, 27,860,051.91 and 12,945,101.50

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Solution

The fourth proportional to 20,188,462.78, 27,860,051.91 and 12,945,101.50 is: 17,864,222.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,462.78 : 27,860,051.91 = 12,945,101.50 : x
  2. Step 2: Convert to fraction form
    20,188,462.78/27,860,051.91 = 12,945,101.50/x
  3. Step 3: Cross multiply
    20,188,462.78x = 27,860,051.91 × 12,945,101.50
  4. Step 4: Simplify right side
    20,188,462.78x = 360,651,199,770,218.88
  5. Step 5: Solve for x
    x = 360,651,199,770,218.88/20,188,462.78
  6. Step 6: Final answer
    x = 17,864,222.93

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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.