Home / 20,757,843.63-28,645,653.20-11,338,642.40

Finding the Fourth Proportional to 20,757,843.63, 28,645,653.20 and 11,338,642.40

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Solution

The fourth proportional to 20,757,843.63, 28,645,653.20 and 11,338,642.40 is: 15,647,233.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757,843.63 : 28,645,653.20 = 11,338,642.40 : x
  2. Step 2: Convert to fraction form
    20,757,843.63/28,645,653.20 = 11,338,642.40/x
  3. Step 3: Cross multiply
    20,757,843.63x = 28,645,653.20 × 11,338,642.40
  4. Step 4: Simplify right side
    20,757,843.63x = 324,802,817,749,294.19
  5. Step 5: Solve for x
    x = 324,802,817,749,294.19/20,757,843.63
  6. Step 6: Final answer
    x = 15,647,233.09

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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.