Home / 20,188,857.06-27,860,481-11,021,499.81

Finding the Fourth Proportional to 20,188,857.06, 27,860,481 and 11,021,499.81

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Solution

The fourth proportional to 20,188,857.06, 27,860,481 and 11,021,499.81 is: 15,209,592.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,857.06 : 27,860,481 = 11,021,499.81 : x
  2. Step 2: Convert to fraction form
    20,188,857.06/27,860,481 = 11,021,499.81/x
  3. Step 3: Cross multiply
    20,188,857.06x = 27,860,481 × 11,021,499.81
  4. Step 4: Simplify right side
    20,188,857.06x = 307,064,286,048,008.62
  5. Step 5: Solve for x
    x = 307,064,286,048,008.62/20,188,857.06
  6. Step 6: Final answer
    x = 15,209,592.36

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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.