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Finding the Third Proportional to 142,975,125 and 220,932,981

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Solution

The third proportional to 142,975,125 and 220,932,981 is: 341,397,722.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,975,125 : 220,932,981 = 220,932,981 : x
  2. Step 2: Convert to fraction form
    142,975,125/220,932,981 = 220,932,981/x
  3. Step 3: Cross multiply
    142,975,125x = 220,932,981 × 220,932,981
  4. Step 4: Simplify right side
    142,975,125x = 48,811,382,093,546,360
  5. Step 5: Solve for x
    x = 48,811,382,093,546,360/142,975,125
  6. Step 6: Final answer
    x = 341,397,722.81

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.