Home / 20,108,352.72-27,748,709.62-11,406,338.52

Finding the Fourth Proportional to 20,108,352.72, 27,748,709.62 and 11,406,338.52

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Solution

The fourth proportional to 20,108,352.72, 27,748,709.62 and 11,406,338.52 is: 15,740,283.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108,352.72 : 27,748,709.62 = 11,406,338.52 : x
  2. Step 2: Convert to fraction form
    20,108,352.72/27,748,709.62 = 11,406,338.52/x
  3. Step 3: Cross multiply
    20,108,352.72x = 27,748,709.62 × 11,406,338.52
  4. Step 4: Simplify right side
    20,108,352.72x = 316,511,175,418,900.56
  5. Step 5: Solve for x
    x = 316,511,175,418,900.56/20,108,352.72
  6. Step 6: Final answer
    x = 15,740,283.64

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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.