Home / 20,188,796.75-27,860,397.80-11,021,439.50

Finding the Fourth Proportional to 20,188,796.75, 27,860,397.80 and 11,021,439.50

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Solution

The fourth proportional to 20,188,796.75, 27,860,397.80 and 11,021,439.50 is: 15,209,509.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,796.75 : 27,860,397.80 = 11,021,439.50 : x
  2. Step 2: Convert to fraction form
    20,188,796.75/27,860,397.80 = 11,021,439.50/x
  3. Step 3: Cross multiply
    20,188,796.75x = 27,860,397.80 × 11,021,439.50
  4. Step 4: Simplify right side
    20,188,796.75x = 307,061,688,958,414.06
  5. Step 5: Solve for x
    x = 307,061,688,958,414.06/20,188,796.75
  6. Step 6: Final answer
    x = 15,209,509.15

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1.5x scale

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.