Home / 20,188,784.72-27,860,380.88-11,021,427.47

Finding the Fourth Proportional to 20,188,784.72, 27,860,380.88 and 11,021,427.47

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Solution

The fourth proportional to 20,188,784.72, 27,860,380.88 and 11,021,427.47 is: 15,209,492.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,784.72 : 27,860,380.88 = 11,021,427.47 : x
  2. Step 2: Convert to fraction form
    20,188,784.72/27,860,380.88 = 11,021,427.47/x
  3. Step 3: Cross multiply
    20,188,784.72x = 27,860,380.88 × 11,021,427.47
  4. Step 4: Simplify right side
    20,188,784.72x = 307,061,167,170,038.56
  5. Step 5: Solve for x
    x = 307,061,167,170,038.56/20,188,784.72
  6. Step 6: Final answer
    x = 15,209,492.37

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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.