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Finding the Third Proportional to 31,129,982 and 68,124,274

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Solution

The third proportional to 31,129,982 and 68,124,274 is: 149,081,895.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,129,982 : 68,124,274 = 68,124,274 : x
  2. Step 2: Convert to fraction form
    31,129,982/68,124,274 = 68,124,274/x
  3. Step 3: Cross multiply
    31,129,982x = 68,124,274 × 68,124,274
  4. Step 4: Simplify right side
    31,129,982x = 4,640,916,708,027,076
  5. Step 5: Solve for x
    x = 4,640,916,708,027,076/31,129,982
  6. Step 6: Final answer
    x = 149,081,895.00

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.