Home / 15,208,241.43-20,987,286.87-8,239,054.74

Finding the Fourth Proportional to 15,208,241.43, 20,987,286.87 and 8,239,054.74

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Solution

The fourth proportional to 15,208,241.43, 20,987,286.87 and 8,239,054.74 is: 11,369,848.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,208,241.43 : 20,987,286.87 = 8,239,054.74 : x
  2. Step 2: Convert to fraction form
    15,208,241.43/20,987,286.87 = 8,239,054.74/x
  3. Step 3: Cross multiply
    15,208,241.43x = 20,987,286.87 × 8,239,054.74
  4. Step 4: Simplify right side
    15,208,241.43x = 172,915,405,366,013.28
  5. Step 5: Solve for x
    x = 172,915,405,366,013.28/15,208,241.43
  6. Step 6: Final answer
    x = 11,369,848.79

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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.