Home / 21,882,489.60-30,198,991.68-13,183,400.64

Finding the Fourth Proportional to 21,882,489.60, 30,198,991.68 and 13,183,400.64

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Solution

The fourth proportional to 21,882,489.60, 30,198,991.68 and 13,183,400.64 is: 18,193,789.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,882,489.60 : 30,198,991.68 = 13,183,400.64 : x
  2. Step 2: Convert to fraction form
    21,882,489.60/30,198,991.68 = 13,183,400.64/x
  3. Step 3: Cross multiply
    21,882,489.60x = 30,198,991.68 × 13,183,400.64
  4. Step 4: Simplify right side
    21,882,489.60x = 398,125,406,241,466.69
  5. Step 5: Solve for x
    x = 398,125,406,241,466.69/21,882,489.60
  6. Step 6: Final answer
    x = 18,193,789.35

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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.