Home / 15,739,819.56-21,720,377.58-8,770,137

Finding the Fourth Proportional to 15,739,819.56, 21,720,377.58 and 8,770,137

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Solution

The fourth proportional to 15,739,819.56, 21,720,377.58 and 8,770,137 is: 12,102,469.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,739,819.56 : 21,720,377.58 = 8,770,137 : x
  2. Step 2: Convert to fraction form
    15,739,819.56/21,720,377.58 = 8,770,137/x
  3. Step 3: Cross multiply
    15,739,819.56x = 21,720,377.58 × 8,770,137
  4. Step 4: Simplify right side
    15,739,819.56x = 190,490,687,068,328.44
  5. Step 5: Solve for x
    x = 190,490,687,068,328.44/15,739,819.56
  6. Step 6: Final answer
    x = 12,102,469.56

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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.