Home / 10,138,504.12-15,208,691.28-3,315,112.42

Finding the Fourth Proportional to 10,138,504.12, 15,208,691.28 and 3,315,112.42

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Solution

The fourth proportional to 10,138,504.12, 15,208,691.28 and 3,315,112.42 is: 4,972,974.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138,504.12 : 15,208,691.28 = 3,315,112.42 : x
  2. Step 2: Convert to fraction form
    10,138,504.12/15,208,691.28 = 3,315,112.42/x
  3. Step 3: Cross multiply
    10,138,504.12x = 15,208,691.28 × 3,315,112.42
  4. Step 4: Simplify right side
    10,138,504.12x = 50,418,521,354,273.70
  5. Step 5: Solve for x
    x = 50,418,521,354,273.70/10,138,504.12
  6. Step 6: Final answer
    x = 4,972,974.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.