Home / 120,299,844.83-166,149,196.99-81,302,704.25

Finding the Fourth Proportional to 120,299,844.83, 166,149,196.99 and 81,302,704.25

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Solution

The fourth proportional to 120,299,844.83, 166,149,196.99 and 81,302,704.25 is: 112,289,247.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,299,844.83 : 166,149,196.99 = 81,302,704.25 : x
  2. Step 2: Convert to fraction form
    120,299,844.83/166,149,196.99 = 81,302,704.25/x
  3. Step 3: Cross multiply
    120,299,844.83x = 166,149,196.99 × 81,302,704.25
  4. Step 4: Simplify right side
    120,299,844.83x = 13,508,379,023,218,960
  5. Step 5: Solve for x
    x = 13,508,379,023,218,960/120,299,844.83
  6. Step 6: Final answer
    x = 112,289,247.28

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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.