Home / 20,996,759.25-28,975,527.77-11,338,967.25

Finding the Fourth Proportional to 20,996,759.25, 28,975,527.77 and 11,338,967.25

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Solution

The fourth proportional to 20,996,759.25, 28,975,527.77 and 11,338,967.25 is: 15,647,774.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996,759.25 : 28,975,527.77 = 11,338,967.25 : x
  2. Step 2: Convert to fraction form
    20,996,759.25/28,975,527.77 = 11,338,967.25/x
  3. Step 3: Cross multiply
    20,996,759.25x = 28,975,527.77 × 11,338,967.25
  4. Step 4: Simplify right side
    20,996,759.25x = 328,552,560,378,800.69
  5. Step 5: Solve for x
    x = 328,552,560,378,800.69/20,996,759.25
  6. Step 6: Final answer
    x = 15,647,774.81

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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.