Home / 722,238,015.66-1,083,015,512.91-279,787,927.02

Finding the Fourth Proportional to 722,238,015.66, 1,083,015,512.91 and 279,787,927.02

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Solution

The fourth proportional to 722,238,015.66, 1,083,015,512.91 and 279,787,927.02 is: 419,549,592.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,238,015.66 : 1,083,015,512.91 = 279,787,927.02 : x
  2. Step 2: Convert to fraction form
    722,238,015.66/1,083,015,512.91 = 279,787,927.02/x
  3. Step 3: Cross multiply
    722,238,015.66x = 1,083,015,512.91 × 279,787,927.02
  4. Step 4: Simplify right side
    722,238,015.66x = 303,014,665,287,590,976
  5. Step 5: Solve for x
    x = 303,014,665,287,590,976/722,238,015.66
  6. Step 6: Final answer
    x = 419,549,592.68

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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.