Home / 20,152,187.78-27,808,969.82-11,449,152.50

Finding the Fourth Proportional to 20,152,187.78, 27,808,969.82 and 11,449,152.50

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Solution

The fourth proportional to 20,152,187.78, 27,808,969.82 and 11,449,152.50 is: 15,799,234.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152,187.78 : 27,808,969.82 = 11,449,152.50 : x
  2. Step 2: Convert to fraction form
    20,152,187.78/27,808,969.82 = 11,449,152.50/x
  3. Step 3: Cross multiply
    20,152,187.78x = 27,808,969.82 × 11,449,152.50
  4. Step 4: Simplify right side
    20,152,187.78x = 318,389,136,337,077.56
  5. Step 5: Solve for x
    x = 318,389,136,337,077.56/20,152,187.78
  6. Step 6: Final answer
    x = 15,799,234.30

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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.