Home / 82,181,721.56-123,280,739.58-30,379,900.64

Finding the Fourth Proportional to 82,181,721.56, 123,280,739.58 and 30,379,900.64

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Solution

The fourth proportional to 82,181,721.56, 123,280,739.58 and 30,379,900.64 is: 45,572,866.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,181,721.56 : 123,280,739.58 = 30,379,900.64 : x
  2. Step 2: Convert to fraction form
    82,181,721.56/123,280,739.58 = 30,379,900.64/x
  3. Step 3: Cross multiply
    82,181,721.56x = 123,280,739.58 × 30,379,900.64
  4. Step 4: Simplify right side
    82,181,721.56x = 3,745,256,619,266,115.50
  5. Step 5: Solve for x
    x = 3,745,256,619,266,115.50/82,181,721.56
  6. Step 6: Final answer
    x = 45,572,866.43

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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.