Home / 505,492,023.45-758,238,035.18-419,327,722.65

Finding the Fourth Proportional to 505,492,023.45, 758,238,035.18 and 419,327,722.65

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Solution

The fourth proportional to 505,492,023.45, 758,238,035.18 and 419,327,722.65 is: 628,991,583.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,492,023.45 : 758,238,035.18 = 419,327,722.65 : x
  2. Step 2: Convert to fraction form
    505,492,023.45/758,238,035.18 = 419,327,722.65/x
  3. Step 3: Cross multiply
    505,492,023.45x = 758,238,035.18 × 419,327,722.65
  4. Step 4: Simplify right side
    505,492,023.45x = 317,950,228,516,543,296
  5. Step 5: Solve for x
    x = 317,950,228,516,543,296/505,492,023.45
  6. Step 6: Final answer
    x = 628,991,583.98

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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.