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Finding the Third Proportional to 7,129,719 and 15,395,787

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Solution

The third proportional to 7,129,719 and 15,395,787 is: 33,245,385.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129,719 : 15,395,787 = 15,395,787 : x
  2. Step 2: Convert to fraction form
    7,129,719/15,395,787 = 15,395,787/x
  3. Step 3: Cross multiply
    7,129,719x = 15,395,787 × 15,395,787
  4. Step 4: Simplify right side
    7,129,719x = 237,030,257,349,369
  5. Step 5: Solve for x
    x = 237,030,257,349,369/7,129,719
  6. Step 6: Final answer
    x = 33,245,385.60

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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.