Home / 71,914,089.76-107,874,284.64-20,801,275.36

Finding the Fourth Proportional to 71,914,089.76, 107,874,284.64 and 20,801,275.36

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Solution

The fourth proportional to 71,914,089.76, 107,874,284.64 and 20,801,275.36 is: 31,202,824.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,914,089.76 : 107,874,284.64 = 20,801,275.36 : x
  2. Step 2: Convert to fraction form
    71,914,089.76/107,874,284.64 = 20,801,275.36/x
  3. Step 3: Cross multiply
    71,914,089.76x = 107,874,284.64 × 20,801,275.36
  4. Step 4: Simplify right side
    71,914,089.76x = 2,243,922,699,059,658.50
  5. Step 5: Solve for x
    x = 2,243,922,699,059,658.50/71,914,089.76
  6. Step 6: Final answer
    x = 31,202,824.18

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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.