Home / 20,272,976.88-27,976,714.20-11,105,948.40

Finding the Fourth Proportional to 20,272,976.88, 27,976,714.20 and 11,105,948.40

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Solution

The fourth proportional to 20,272,976.88, 27,976,714.20 and 11,105,948.40 is: 15,326,212.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,272,976.88 : 27,976,714.20 = 11,105,948.40 : x
  2. Step 2: Convert to fraction form
    20,272,976.88/27,976,714.20 = 11,105,948.40/x
  3. Step 3: Cross multiply
    20,272,976.88x = 27,976,714.20 × 11,105,948.40
  4. Step 4: Simplify right side
    20,272,976.88x = 310,707,944,306,747.31
  5. Step 5: Solve for x
    x = 310,707,944,306,747.31/20,272,976.88
  6. Step 6: Final answer
    x = 15,326,212.14

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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.