Home / 21,758,819.96-30,027,731.82-11,969,515.64

Finding the Fourth Proportional to 21,758,819.96, 30,027,731.82 and 11,969,515.64

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Solution

The fourth proportional to 21,758,819.96, 30,027,731.82 and 11,969,515.64 is: 16,518,239.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,758,819.96 : 30,027,731.82 = 11,969,515.64 : x
  2. Step 2: Convert to fraction form
    21,758,819.96/30,027,731.82 = 11,969,515.64/x
  3. Step 3: Cross multiply
    21,758,819.96x = 30,027,731.82 × 11,969,515.64
  4. Step 4: Simplify right side
    21,758,819.96x = 359,417,405,653,215.69
  5. Step 5: Solve for x
    x = 359,417,405,653,215.69/21,758,819.96
  6. Step 6: Final answer
    x = 16,518,239.79

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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.