Home / 20,757,971.30-28,645,829.25-11,338,770.02

Finding the Fourth Proportional to 20,757,971.30, 28,645,829.25 and 11,338,770.02

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Solution

The fourth proportional to 20,757,971.30, 28,645,829.25 and 11,338,770.02 is: 15,647,409.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757,971.30 : 28,645,829.25 = 11,338,770.02 : x
  2. Step 2: Convert to fraction form
    20,757,971.30/28,645,829.25 = 11,338,770.02/x
  3. Step 3: Cross multiply
    20,757,971.30x = 28,645,829.25 × 11,338,770.02
  4. Step 4: Simplify right side
    20,757,971.30x = 324,808,469,897,939.06
  5. Step 5: Solve for x
    x = 324,808,469,897,939.06/20,757,971.30
  6. Step 6: Final answer
    x = 15,647,409.14

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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.