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Finding the Third Proportional to 253,722,308 and 403,726,261

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Solution

The third proportional to 253,722,308 and 403,726,261 is: 642,414,516.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,722,308 : 403,726,261 = 403,726,261 : x
  2. Step 2: Convert to fraction form
    253,722,308/403,726,261 = 403,726,261/x
  3. Step 3: Cross multiply
    253,722,308x = 403,726,261 × 403,726,261
  4. Step 4: Simplify right side
    253,722,308x = 162,994,893,821,040,128
  5. Step 5: Solve for x
    x = 162,994,893,821,040,128/253,722,308
  6. Step 6: Final answer
    x = 642,414,516.51

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.