Home / 81,420,639.54-122,191,504.38-32,898,915.24

Finding the Fourth Proportional to 81,420,639.54, 122,191,504.38 and 32,898,915.24

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Solution

The fourth proportional to 81,420,639.54, 122,191,504.38 and 32,898,915.24 is: 49,372,836.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,420,639.54 : 122,191,504.38 = 32,898,915.24 : x
  2. Step 2: Convert to fraction form
    81,420,639.54/122,191,504.38 = 32,898,915.24/x
  3. Step 3: Cross multiply
    81,420,639.54x = 122,191,504.38 × 32,898,915.24
  4. Step 4: Simplify right side
    81,420,639.54x = 4,019,967,945,645,708.50
  5. Step 5: Solve for x
    x = 4,019,967,945,645,708.50/81,420,639.54
  6. Step 6: Final answer
    x = 49,372,836.77

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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.