Home / 81,187,735.68-111,930,691.86-64,497,851.64

Finding the Fourth Proportional to 81,187,735.68, 111,930,691.86 and 64,497,851.64

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Solution

The fourth proportional to 81,187,735.68, 111,930,691.86 and 64,497,851.64 is: 88,920,932.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,187,735.68 : 111,930,691.86 = 64,497,851.64 : x
  2. Step 2: Convert to fraction form
    81,187,735.68/111,930,691.86 = 64,497,851.64/x
  3. Step 3: Cross multiply
    81,187,735.68x = 111,930,691.86 × 64,497,851.64
  4. Step 4: Simplify right side
    81,187,735.68x = 7,219,289,157,548,836
  5. Step 5: Solve for x
    x = 7,219,289,157,548,836/81,187,735.68
  6. Step 6: Final answer
    x = 88,920,932.42

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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.