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Finding the Third Proportional to 218,565,563 and 356,860,113

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Solution

The third proportional to 218,565,563 and 356,860,113 is: 582,658,761.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,565,563 : 356,860,113 = 356,860,113 : x
  2. Step 2: Convert to fraction form
    218,565,563/356,860,113 = 356,860,113/x
  3. Step 3: Cross multiply
    218,565,563x = 356,860,113 × 356,860,113
  4. Step 4: Simplify right side
    218,565,563x = 127,349,140,250,372,768
  5. Step 5: Solve for x
    x = 127,349,140,250,372,768/218,565,563
  6. Step 6: Final answer
    x = 582,658,761.53

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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.