Home / 419,694,086.81-628,231,073.99-309,154,379.67

Finding the Fourth Proportional to 419,694,086.81, 628,231,073.99 and 309,154,379.67

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Solution

The fourth proportional to 419,694,086.81, 628,231,073.99 and 309,154,379.67 is: 462,766,558.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,694,086.81 : 628,231,073.99 = 309,154,379.67 : x
  2. Step 2: Convert to fraction form
    419,694,086.81/628,231,073.99 = 309,154,379.67/x
  3. Step 3: Cross multiply
    419,694,086.81x = 628,231,073.99 × 309,154,379.67
  4. Step 4: Simplify right side
    419,694,086.81x = 194,220,387,967,250,560
  5. Step 5: Solve for x
    x = 194,220,387,967,250,560/419,694,086.81
  6. Step 6: Final answer
    x = 462,766,558.00

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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.