Home / 505,901,125.96-698,089,806.24-279,804,181.32

Finding the Fourth Proportional to 505,901,125.96, 698,089,806.24 and 279,804,181.32

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Solution

The fourth proportional to 505,901,125.96, 698,089,806.24 and 279,804,181.32 is: 386,100,043.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,901,125.96 : 698,089,806.24 = 279,804,181.32 : x
  2. Step 2: Convert to fraction form
    505,901,125.96/698,089,806.24 = 279,804,181.32/x
  3. Step 3: Cross multiply
    505,901,125.96x = 698,089,806.24 × 279,804,181.32
  4. Step 4: Simplify right side
    505,901,125.96x = 195,328,446,722,820,640
  5. Step 5: Solve for x
    x = 195,328,446,722,820,640/505,901,125.96
  6. Step 6: Final answer
    x = 386,100,043.47

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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.