Home / 419,864,958.12-629,795,194.56-108,972,347.07

Finding the Fourth Proportional to 419,864,958.12, 629,795,194.56 and 108,972,347.07

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Solution

The fourth proportional to 419,864,958.12, 629,795,194.56 and 108,972,347.07 is: 163,457,938.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,864,958.12 : 629,795,194.56 = 108,972,347.07 : x
  2. Step 2: Convert to fraction form
    419,864,958.12/629,795,194.56 = 108,972,347.07/x
  3. Step 3: Cross multiply
    419,864,958.12x = 629,795,194.56 × 108,972,347.07
  4. Step 4: Simplify right side
    419,864,958.12x = 68,630,260,524,610,488
  5. Step 5: Solve for x
    x = 68,630,260,524,610,488/419,864,958.12
  6. Step 6: Final answer
    x = 163,457,938.55

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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.