Home / 20,188,783.35-27,860,378.99-11,021,426.10

Finding the Fourth Proportional to 20,188,783.35, 27,860,378.99 and 11,021,426.10

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Solution

The fourth proportional to 20,188,783.35, 27,860,378.99 and 11,021,426.10 is: 15,209,490.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,188,783.35 : 27,860,378.99 = 11,021,426.10 : x
  2. Step 2: Convert to fraction form
    20,188,783.35/27,860,378.99 = 11,021,426.10/x
  3. Step 3: Cross multiply
    20,188,783.35x = 27,860,378.99 × 11,021,426.10
  4. Step 4: Simplify right side
    20,188,783.35x = 307,061,108,101,170.50
  5. Step 5: Solve for x
    x = 307,061,108,101,170.50/20,188,783.35
  6. Step 6: Final answer
    x = 15,209,490.48

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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.