Home / 729,244,361.86-1,006,357,268.48-399,219,500.86

Finding the Fourth Proportional to 729,244,361.86, 1,006,357,268.48 and 399,219,500.86

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Solution

The fourth proportional to 729,244,361.86, 1,006,357,268.48 and 399,219,500.86 is: 550,922,938.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,244,361.86 : 1,006,357,268.48 = 399,219,500.86 : x
  2. Step 2: Convert to fraction form
    729,244,361.86/1,006,357,268.48 = 399,219,500.86/x
  3. Step 3: Cross multiply
    729,244,361.86x = 1,006,357,268.48 × 399,219,500.86
  4. Step 4: Simplify right side
    729,244,361.86x = 401,757,446,407,900,736
  5. Step 5: Solve for x
    x = 401,757,446,407,900,736/729,244,361.86
  6. Step 6: Final answer
    x = 550,922,938.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.