Home / 20,188,784.35-27,860,380.36-11,021,427.10

Finding the Fourth Proportional to 20,188,784.35, 27,860,380.36 and 11,021,427.10

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Solution

The fourth proportional to 20,188,784.35, 27,860,380.36 and 11,021,427.10 is: 15,209,491.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,784.35 : 27,860,380.36 = 11,021,427.10 : x
  2. Step 2: Convert to fraction form
    20,188,784.35/27,860,380.36 = 11,021,427.10/x
  3. Step 3: Cross multiply
    20,188,784.35x = 27,860,380.36 × 11,021,427.10
  4. Step 4: Simplify right side
    20,188,784.35x = 307,061,151,116,011.75
  5. Step 5: Solve for x
    x = 307,061,151,116,011.75/20,188,784.35
  6. Step 6: Final answer
    x = 15,209,491.85

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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.