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Finding the Third Proportional to 31,839,648.75 and 68,220,071.75

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Solution

The third proportional to 31,839,648.75 and 68,220,071.75 is: 146,169,269.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,839,648.75 : 68,220,071.75 = 68,220,071.75 : x
  2. Step 2: Convert to fraction form
    31,839,648.75/68,220,071.75 = 68,220,071.75/x
  3. Step 3: Cross multiply
    31,839,648.75x = 68,220,071.75 × 68,220,071.75
  4. Step 4: Simplify right side
    31,839,648.75x = 4,653,978,189,575,148
  5. Step 5: Solve for x
    x = 4,653,978,189,575,148/31,839,648.75
  6. Step 6: Final answer
    x = 146,169,269.21

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.