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Finding the Third Proportional to 218,565,571 and 356,860,125

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Solution

The third proportional to 218,565,571 and 356,860,125 is: 582,658,779.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,565,571 : 356,860,125 = 356,860,125 : x
  2. Step 2: Convert to fraction form
    218,565,571/356,860,125 = 356,860,125/x
  3. Step 3: Cross multiply
    218,565,571x = 356,860,125 × 356,860,125
  4. Step 4: Simplify right side
    218,565,571x = 127,349,148,815,015,632
  5. Step 5: Solve for x
    x = 127,349,148,815,015,632/218,565,571
  6. Step 6: Final answer
    x = 582,658,779.39

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.