Home / 419,906,964.60-629,860,446.90-113,230,078.20

Finding the Fourth Proportional to 419,906,964.60, 629,860,446.90 and 113,230,078.20

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Solution

The fourth proportional to 419,906,964.60, 629,860,446.90 and 113,230,078.20 is: 169,845,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,906,964.60 : 629,860,446.90 = 113,230,078.20 : x
  2. Step 2: Convert to fraction form
    419,906,964.60/629,860,446.90 = 113,230,078.20/x
  3. Step 3: Cross multiply
    419,906,964.60x = 629,860,446.90 × 113,230,078.20
  4. Step 4: Simplify right side
    419,906,964.60x = 71,319,147,657,573,944
  5. Step 5: Solve for x
    x = 71,319,147,657,573,944/419,906,964.60
  6. Step 6: Final answer
    x = 169,845,117.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.