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Finding the Third Proportional to 201,397,780 and 310,993,390

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Solution

The third proportional to 201,397,780 and 310,993,390 is: 480,228,176.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,397,780 : 310,993,390 = 310,993,390 : x
  2. Step 2: Convert to fraction form
    201,397,780/310,993,390 = 310,993,390/x
  3. Step 3: Cross multiply
    201,397,780x = 310,993,390 × 310,993,390
  4. Step 4: Simplify right side
    201,397,780x = 96,716,888,623,692,096
  5. Step 5: Solve for x
    x = 96,716,888,623,692,096/201,397,780
  6. Step 6: Final answer
    x = 480,228,176.42

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.