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Finding the Third Proportional to 218,565,575 and 356,860,131

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Solution

The third proportional to 218,565,575 and 356,860,131 is: 582,658,788.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,565,575 : 356,860,131 = 356,860,131 : x
  2. Step 2: Convert to fraction form
    218,565,575/356,860,131 = 356,860,131/x
  3. Step 3: Cross multiply
    218,565,575x = 356,860,131 × 356,860,131
  4. Step 4: Simplify right side
    218,565,575x = 127,349,153,097,337,168
  5. Step 5: Solve for x
    x = 127,349,153,097,337,168/218,565,575
  6. Step 6: Final answer
    x = 582,658,788.32

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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.