Home / 71,521,819.71-107,263,521.85-19,694,083.22

Finding the Fourth Proportional to 71,521,819.71, 107,263,521.85 and 19,694,083.22

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Solution

The fourth proportional to 71,521,819.71, 107,263,521.85 and 19,694,083.22 is: 29,535,835.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,521,819.71 : 107,263,521.85 = 19,694,083.22 : x
  2. Step 2: Convert to fraction form
    71,521,819.71/107,263,521.85 = 19,694,083.22/x
  3. Step 3: Cross multiply
    71,521,819.71x = 107,263,521.85 × 19,694,083.22
  4. Step 4: Simplify right side
    71,521,819.71x = 2,112,456,725,784,188
  5. Step 5: Solve for x
    x = 2,112,456,725,784,188/71,521,819.71
  6. Step 6: Final answer
    x = 29,535,835.84

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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.