Home / 82,181,253.06-123,280,037.10-30,379,431.60

Finding the Fourth Proportional to 82,181,253.06, 123,280,037.10 and 30,379,431.60

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Solution

The fourth proportional to 82,181,253.06, 123,280,037.10 and 30,379,431.60 is: 45,572,162.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,181,253.06 : 123,280,037.10 = 30,379,431.60 : x
  2. Step 2: Convert to fraction form
    82,181,253.06/123,280,037.10 = 30,379,431.60/x
  3. Step 3: Cross multiply
    82,181,253.06x = 123,280,037.10 × 30,379,431.60
  4. Step 4: Simplify right side
    82,181,253.06x = 3,745,177,454,724,912.50
  5. Step 5: Solve for x
    x = 3,745,177,454,724,912.50/82,181,253.06
  6. Step 6: Final answer
    x = 45,572,162.94

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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.