Home / 20,188,842.56-27,860,461-11,021,485.32

Finding the Fourth Proportional to 20,188,842.56, 27,860,461 and 11,021,485.32

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Solution

The fourth proportional to 20,188,842.56, 27,860,461 and 11,021,485.32 is: 15,209,572.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,842.56 : 27,860,461 = 11,021,485.32 : x
  2. Step 2: Convert to fraction form
    20,188,842.56/27,860,461 = 11,021,485.32/x
  3. Step 3: Cross multiply
    20,188,842.56x = 27,860,461 × 11,021,485.32
  4. Step 4: Simplify right side
    20,188,842.56x = 307,063,661,919,932.50
  5. Step 5: Solve for x
    x = 307,063,661,919,932.50/20,188,842.56
  6. Step 6: Final answer
    x = 15,209,572.37

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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.