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Finding the Third Proportional to 7,921,151 and 16,979,148

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Solution

The third proportional to 7,921,151 and 16,979,148 is: 36,395,148.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,921,151 : 16,979,148 = 16,979,148 : x
  2. Step 2: Convert to fraction form
    7,921,151/16,979,148 = 16,979,148/x
  3. Step 3: Cross multiply
    7,921,151x = 16,979,148 × 16,979,148
  4. Step 4: Simplify right side
    7,921,151x = 288,291,466,805,904
  5. Step 5: Solve for x
    x = 288,291,466,805,904/7,921,151
  6. Step 6: Final answer
    x = 36,395,148.48

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.