Home / 14,990,819.58-20,687,159.43-8,115,150.78

Finding the Fourth Proportional to 14,990,819.58, 20,687,159.43 and 8,115,150.78

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Solution

The fourth proportional to 14,990,819.58, 20,687,159.43 and 8,115,150.78 is: 11,198,815.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,990,819.58 : 20,687,159.43 = 8,115,150.78 : x
  2. Step 2: Convert to fraction form
    14,990,819.58/20,687,159.43 = 8,115,150.78/x
  3. Step 3: Cross multiply
    14,990,819.58x = 20,687,159.43 × 8,115,150.78
  4. Step 4: Simplify right side
    14,990,819.58x = 167,879,417,984,348.84
  5. Step 5: Solve for x
    x = 167,879,417,984,348.84/14,990,819.58
  6. Step 6: Final answer
    x = 11,198,815.19

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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.