Home / 74,892,936.20-112,339,404.30-61,288,046.60

Finding the Fourth Proportional to 74,892,936.20, 112,339,404.30 and 61,288,046.60

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Solution

The fourth proportional to 74,892,936.20, 112,339,404.30 and 61,288,046.60 is: 91,932,069.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,892,936.20 : 112,339,404.30 = 61,288,046.60 : x
  2. Step 2: Convert to fraction form
    74,892,936.20/112,339,404.30 = 61,288,046.60/x
  3. Step 3: Cross multiply
    74,892,936.20x = 112,339,404.30 × 61,288,046.60
  4. Step 4: Simplify right side
    74,892,936.20x = 6,885,062,645,754,640
  5. Step 5: Solve for x
    x = 6,885,062,645,754,640/74,892,936.20
  6. Step 6: Final answer
    x = 91,932,069.90

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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.