Home / 82,728,043.44-123,975,913.50-65,379,972.12

Finding the Fourth Proportional to 82,728,043.44, 123,975,913.50 and 65,379,972.12

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Solution

The fourth proportional to 82,728,043.44, 123,975,913.50 and 65,379,972.12 is: 97,978,163.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,728,043.44 : 123,975,913.50 = 65,379,972.12 : x
  2. Step 2: Convert to fraction form
    82,728,043.44/123,975,913.50 = 65,379,972.12/x
  3. Step 3: Cross multiply
    82,728,043.44x = 123,975,913.50 × 65,379,972.12
  4. Step 4: Simplify right side
    82,728,043.44x = 8,105,541,768,181,531
  5. Step 5: Solve for x
    x = 8,105,541,768,181,531/82,728,043.44
  6. Step 6: Final answer
    x = 97,978,163.52

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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.