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Finding the Third Proportional to 201,397,478 and 310,992,940

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Solution

The third proportional to 201,397,478 and 310,992,940 is: 480,227,506.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,397,478 : 310,992,940 = 310,992,940 : x
  2. Step 2: Convert to fraction form
    201,397,478/310,992,940 = 310,992,940/x
  3. Step 3: Cross multiply
    201,397,478x = 310,992,940 × 310,992,940
  4. Step 4: Simplify right side
    201,397,478x = 96,716,608,729,843,600
  5. Step 5: Solve for x
    x = 96,716,608,729,843,600/201,397,478
  6. Step 6: Final answer
    x = 480,227,506.77

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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.