Home / 21,105,819.73-31,650,659.43-11,516,072.59

Finding the Fourth Proportional to 21,105,819.73, 31,650,659.43 and 11,516,072.59

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Solution

The fourth proportional to 21,105,819.73, 31,650,659.43 and 11,516,072.59 is: 17,269,705.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,105,819.73 : 31,650,659.43 = 11,516,072.59 : x
  2. Step 2: Convert to fraction form
    21,105,819.73/31,650,659.43 = 11,516,072.59/x
  3. Step 3: Cross multiply
    21,105,819.73x = 31,650,659.43 × 11,516,072.59
  4. Step 4: Simplify right side
    21,105,819.73x = 364,491,291,517,248
  5. Step 5: Solve for x
    x = 364,491,291,517,248/21,105,819.73
  6. Step 6: Final answer
    x = 17,269,705.52

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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.