Home / 505,522,165.20-758,283,247.80-419,357,864.40

Finding the Fourth Proportional to 505,522,165.20, 758,283,247.80 and 419,357,864.40

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Solution

The fourth proportional to 505,522,165.20, 758,283,247.80 and 419,357,864.40 is: 629,036,796.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,522,165.20 : 758,283,247.80 = 419,357,864.40 : x
  2. Step 2: Convert to fraction form
    505,522,165.20/758,283,247.80 = 419,357,864.40/x
  3. Step 3: Cross multiply
    505,522,165.20x = 758,283,247.80 × 419,357,864.40
  4. Step 4: Simplify right side
    505,522,165.20x = 317,992,043,407,703,936
  5. Step 5: Solve for x
    x = 317,992,043,407,703,936/505,522,165.20
  6. Step 6: Final answer
    x = 629,036,796.60

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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.