Home / 81,835,025.50-122,753,471.37-27,986,536.54

Finding the Fourth Proportional to 81,835,025.50, 122,753,471.37 and 27,986,536.54

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Solution

The fourth proportional to 81,835,025.50, 122,753,471.37 and 27,986,536.54 is: 41,980,123.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,835,025.50 : 122,753,471.37 = 27,986,536.54 : x
  2. Step 2: Convert to fraction form
    81,835,025.50/122,753,471.37 = 27,986,536.54/x
  3. Step 3: Cross multiply
    81,835,025.50x = 122,753,471.37 × 27,986,536.54
  4. Step 4: Simplify right side
    81,835,025.50x = 3,435,444,511,908,349
  5. Step 5: Solve for x
    x = 3,435,444,511,908,349/81,835,025.50
  6. Step 6: Final answer
    x = 41,980,123.93

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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.