Home / 81,851,697.11-122,796,899.10-26,519,442.59

Finding the Fourth Proportional to 81,851,697.11, 122,796,899.10 and 26,519,442.59

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Solution

The fourth proportional to 81,851,697.11, 122,796,899.10 and 26,519,442.59 is: 39,785,434.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,851,697.11 : 122,796,899.10 = 26,519,442.59 : x
  2. Step 2: Convert to fraction form
    81,851,697.11/122,796,899.10 = 26,519,442.59/x
  3. Step 3: Cross multiply
    81,851,697.11x = 122,796,899.10 × 26,519,442.59
  4. Step 4: Simplify right side
    81,851,697.11x = 3,256,505,315,912,472.50
  5. Step 5: Solve for x
    x = 3,256,505,315,912,472.50/81,851,697.11
  6. Step 6: Final answer
    x = 39,785,434.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.