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Finding the Third Proportional to 201,397,790 and 310,993,411

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Solution

The third proportional to 201,397,790 and 310,993,411 is: 480,228,217.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,397,790 : 310,993,411 = 310,993,411 : x
  2. Step 2: Convert to fraction form
    201,397,790/310,993,411 = 310,993,411/x
  3. Step 3: Cross multiply
    201,397,790x = 310,993,411 × 310,993,411
  4. Step 4: Simplify right side
    201,397,790x = 96,716,901,685,414,928
  5. Step 5: Solve for x
    x = 96,716,901,685,414,928/201,397,790
  6. Step 6: Final answer
    x = 480,228,217.43

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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.