Home / 172,472,688.45-238,015,912.05-94,159,542.69

Finding the Fourth Proportional to 172,472,688.45, 238,015,912.05 and 94,159,542.69

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Solution

The fourth proportional to 172,472,688.45, 238,015,912.05 and 94,159,542.69 is: 129,942,135.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,472,688.45 : 238,015,912.05 = 94,159,542.69 : x
  2. Step 2: Convert to fraction form
    172,472,688.45/238,015,912.05 = 94,159,542.69/x
  3. Step 3: Cross multiply
    172,472,688.45x = 238,015,912.05 × 94,159,542.69
  4. Step 4: Simplify right side
    172,472,688.45x = 22,411,469,431,571,260
  5. Step 5: Solve for x
    x = 22,411,469,431,571,260/172,472,688.45
  6. Step 6: Final answer
    x = 129,942,135.38

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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.