Home / 10,621,682.22-15,872,057.06-7,975,348.72

Finding the Fourth Proportional to 10,621,682.22, 15,872,057.06 and 7,975,348.72

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Solution

The fourth proportional to 10,621,682.22, 15,872,057.06 and 7,975,348.72 is: 11,917,621.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621,682.22 : 15,872,057.06 = 7,975,348.72 : x
  2. Step 2: Convert to fraction form
    10,621,682.22/15,872,057.06 = 7,975,348.72/x
  3. Step 3: Cross multiply
    10,621,682.22x = 15,872,057.06 × 7,975,348.72
  4. Step 4: Simplify right side
    10,621,682.22x = 126,585,189,957,237.97
  5. Step 5: Solve for x
    x = 126,585,189,957,237.97/10,621,682.22
  6. Step 6: Final answer
    x = 11,917,621.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.