Home / 84,783,375.70-127,175,063.55-20,957,967.70

Finding the Fourth Proportional to 84,783,375.70, 127,175,063.55 and 20,957,967.70

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Solution

The fourth proportional to 84,783,375.70, 127,175,063.55 and 20,957,967.70 is: 31,436,951.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,783,375.70 : 127,175,063.55 = 20,957,967.70 : x
  2. Step 2: Convert to fraction form
    84,783,375.70/127,175,063.55 = 20,957,967.70/x
  3. Step 3: Cross multiply
    84,783,375.70x = 127,175,063.55 × 20,957,967.70
  4. Step 4: Simplify right side
    84,783,375.70x = 2,665,330,874,126,347
  5. Step 5: Solve for x
    x = 2,665,330,874,126,347/84,783,375.70
  6. Step 6: Final answer
    x = 31,436,951.55

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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.