Home / 28,530,672.72-39,376,041.66-15,976,508.16

Finding the Fourth Proportional to 28,530,672.72, 39,376,041.66 and 15,976,508.16

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Solution

The fourth proportional to 28,530,672.72, 39,376,041.66 and 15,976,508.16 is: 22,049,660.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,530,672.72 : 39,376,041.66 = 15,976,508.16 : x
  2. Step 2: Convert to fraction form
    28,530,672.72/39,376,041.66 = 15,976,508.16/x
  3. Step 3: Cross multiply
    28,530,672.72x = 39,376,041.66 × 15,976,508.16
  4. Step 4: Simplify right side
    28,530,672.72x = 629,091,650,889,489.88
  5. Step 5: Solve for x
    x = 629,091,650,889,489.88/28,530,672.72
  6. Step 6: Final answer
    x = 22,049,660.63

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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.