Home / 81,158,558.68-111,986,853.24-49,352,502.52

Finding the Fourth Proportional to 81,158,558.68, 111,986,853.24 and 49,352,502.52

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Solution

The fourth proportional to 81,158,558.68, 111,986,853.24 and 49,352,502.52 is: 68,099,181.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,158,558.68 : 111,986,853.24 = 49,352,502.52 : x
  2. Step 2: Convert to fraction form
    81,158,558.68/111,986,853.24 = 49,352,502.52/x
  3. Step 3: Cross multiply
    81,158,558.68x = 111,986,853.24 × 49,352,502.52
  4. Step 4: Simplify right side
    81,158,558.68x = 5,526,831,456,733,970
  5. Step 5: Solve for x
    x = 5,526,831,456,733,970/81,158,558.68
  6. Step 6: Final answer
    x = 68,099,181.98

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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.