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Finding the Third Proportional to 7,881,386 and 16,978,579

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Solution

The third proportional to 7,881,386 and 16,978,579 is: 36,576,326.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881,386 : 16,978,579 = 16,978,579 : x
  2. Step 2: Convert to fraction form
    7,881,386/16,978,579 = 16,978,579/x
  3. Step 3: Cross multiply
    7,881,386x = 16,978,579 × 16,978,579
  4. Step 4: Simplify right side
    7,881,386x = 288,272,144,859,241
  5. Step 5: Solve for x
    x = 288,272,144,859,241/7,881,386
  6. Step 6: Final answer
    x = 36,576,326.15

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.