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Finding the Third Proportional to 7,129,716.19 and 15,395,968.69

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Solution

The third proportional to 7,129,716.19 and 15,395,968.69 is: 33,246,183.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129,716.19 : 15,395,968.69 = 15,395,968.69 : x
  2. Step 2: Convert to fraction form
    7,129,716.19/15,395,968.69 = 15,395,968.69/x
  3. Step 3: Cross multiply
    7,129,716.19x = 15,395,968.69 × 15,395,968.69
  4. Step 4: Simplify right side
    7,129,716.19x = 237,035,851,826,480.47
  5. Step 5: Solve for x
    x = 237,035,851,826,480.47/7,129,716.19
  6. Step 6: Final answer
    x = 33,246,183.38

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.