Home / 77,982,729.30-116,974,093.95-71,936,111.70

Finding the Fourth Proportional to 77,982,729.30, 116,974,093.95 and 71,936,111.70

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Solution

The fourth proportional to 77,982,729.30, 116,974,093.95 and 71,936,111.70 is: 107,904,167.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,982,729.30 : 116,974,093.95 = 71,936,111.70 : x
  2. Step 2: Convert to fraction form
    77,982,729.30/116,974,093.95 = 71,936,111.70/x
  3. Step 3: Cross multiply
    77,982,729.30x = 116,974,093.95 × 71,936,111.70
  4. Step 4: Simplify right side
    77,982,729.30x = 8,414,661,488,393,495
  5. Step 5: Solve for x
    x = 8,414,661,488,393,495/77,982,729.30
  6. Step 6: Final answer
    x = 107,904,167.55

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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.