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Finding the Third Proportional to 31,311,902 and 63,504,220

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Solution

The third proportional to 31,311,902 and 63,504,220 is: 128,794,027.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,311,902 : 63,504,220 = 63,504,220 : x
  2. Step 2: Convert to fraction form
    31,311,902/63,504,220 = 63,504,220/x
  3. Step 3: Cross multiply
    31,311,902x = 63,504,220 × 63,504,220
  4. Step 4: Simplify right side
    31,311,902x = 4,032,785,957,808,400
  5. Step 5: Solve for x
    x = 4,032,785,957,808,400/31,311,902
  6. Step 6: Final answer
    x = 128,794,027.20

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.