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Finding the Third Proportional to 79,731,015 and 124,910,912.25

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Solution

The third proportional to 79,731,015 and 124,910,912.25 is: 195,692,178.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,731,015 : 124,910,912.25 = 124,910,912.25 : x
  2. Step 2: Convert to fraction form
    79,731,015/124,910,912.25 = 124,910,912.25/x
  3. Step 3: Cross multiply
    79,731,015x = 124,910,912.25 × 124,910,912.25
  4. Step 4: Simplify right side
    79,731,015x = 15,602,735,999,127,200
  5. Step 5: Solve for x
    x = 15,602,735,999,127,200/79,731,015
  6. Step 6: Final answer
    x = 195,692,178.25

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.