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Finding the Third Proportional to 71,962,783 and 155,415,669

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Solution

The third proportional to 71,962,783 and 155,415,669 is: 335,646,137.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,962,783 : 155,415,669 = 155,415,669 : x
  2. Step 2: Convert to fraction form
    71,962,783/155,415,669 = 155,415,669/x
  3. Step 3: Cross multiply
    71,962,783x = 155,415,669 × 155,415,669
  4. Step 4: Simplify right side
    71,962,783x = 24,154,030,170,717,560
  5. Step 5: Solve for x
    x = 24,154,030,170,717,560/71,962,783
  6. Step 6: Final answer
    x = 335,646,137.68

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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.