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Finding the Third Proportional to 121,286,392 and 263,823,404

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Solution

The third proportional to 121,286,392 and 263,823,404 is: 573,871,374.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,286,392 : 263,823,404 = 263,823,404 : x
  2. Step 2: Convert to fraction form
    121,286,392/263,823,404 = 263,823,404/x
  3. Step 3: Cross multiply
    121,286,392x = 263,823,404 × 263,823,404
  4. Step 4: Simplify right side
    121,286,392x = 69,602,788,498,147,216
  5. Step 5: Solve for x
    x = 69,602,788,498,147,216/121,286,392
  6. Step 6: Final answer
    x = 573,871,374.61

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.