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Finding the Third Proportional to 55,609,868 and 121,105,890

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Solution

The third proportional to 55,609,868 and 121,105,890 is: 263,741,618.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,609,868 : 121,105,890 = 121,105,890 : x
  2. Step 2: Convert to fraction form
    55,609,868/121,105,890 = 121,105,890/x
  3. Step 3: Cross multiply
    55,609,868x = 121,105,890 × 121,105,890
  4. Step 4: Simplify right side
    55,609,868x = 14,666,636,592,692,100
  5. Step 5: Solve for x
    x = 14,666,636,592,692,100/55,609,868
  6. Step 6: Final answer
    x = 263,741,618.53

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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.