Home / 28,085,286.72-38,757,838.92-15,695,587.08

Finding the Fourth Proportional to 28,085,286.72, 38,757,838.92 and 15,695,587.08

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Solution

The fourth proportional to 28,085,286.72, 38,757,838.92 and 15,695,587.08 is: 21,659,990.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085,286.72 : 38,757,838.92 = 15,695,587.08 : x
  2. Step 2: Convert to fraction form
    28,085,286.72/38,757,838.92 = 15,695,587.08/x
  3. Step 3: Cross multiply
    28,085,286.72x = 38,757,838.92 × 15,695,587.08
  4. Step 4: Simplify right side
    28,085,286.72x = 608,327,035,801,473.12
  5. Step 5: Solve for x
    x = 608,327,035,801,473.12/28,085,286.72
  6. Step 6: Final answer
    x = 21,659,990.22

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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.