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Finding the Third Proportional to 120,011,340 and 261,828,258

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Solution

The third proportional to 120,011,340 and 261,828,258 is: 571,229,657.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,011,340 : 261,828,258 = 261,828,258 : x
  2. Step 2: Convert to fraction form
    120,011,340/261,828,258 = 261,828,258/x
  3. Step 3: Cross multiply
    120,011,340x = 261,828,258 × 261,828,258
  4. Step 4: Simplify right side
    120,011,340x = 68,554,036,687,314,560
  5. Step 5: Solve for x
    x = 68,554,036,687,314,560/120,011,340
  6. Step 6: Final answer
    x = 571,229,657.86

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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.