Home / 20,108,351.72-27,748,708.24-11,406,337.52

Finding the Fourth Proportional to 20,108,351.72, 27,748,708.24 and 11,406,337.52

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Solution

The fourth proportional to 20,108,351.72, 27,748,708.24 and 11,406,337.52 is: 15,740,282.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108,351.72 : 27,748,708.24 = 11,406,337.52 : x
  2. Step 2: Convert to fraction form
    20,108,351.72/27,748,708.24 = 11,406,337.52/x
  3. Step 3: Cross multiply
    20,108,351.72x = 27,748,708.24 × 11,406,337.52
  4. Step 4: Simplify right side
    20,108,351.72x = 316,511,131,929,445.12
  5. Step 5: Solve for x
    x = 316,511,131,929,445.12/20,108,351.72
  6. Step 6: Final answer
    x = 15,740,282.26

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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.