Home / 438,083,067.30-657,212,288.12-161,735,961.04

Finding the Fourth Proportional to 438,083,067.30, 657,212,288.12 and 161,735,961.04

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Solution

The fourth proportional to 438,083,067.30, 657,212,288.12 and 161,735,961.04 is: 242,636,314.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,083,067.30 : 657,212,288.12 = 161,735,961.04 : x
  2. Step 2: Convert to fraction form
    438,083,067.30/657,212,288.12 = 161,735,961.04/x
  3. Step 3: Cross multiply
    438,083,067.30x = 657,212,288.12 × 161,735,961.04
  4. Step 4: Simplify right side
    438,083,067.30x = 106,294,861,026,385,568
  5. Step 5: Solve for x
    x = 106,294,861,026,385,568/438,083,067.30
  6. Step 6: Final answer
    x = 242,636,314.80

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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.