Home / 695,405,091.60-1,043,107,637.40-419,906,077.20

Finding the Fourth Proportional to 695,405,091.60, 1,043,107,637.40 and 419,906,077.20

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Solution

The fourth proportional to 695,405,091.60, 1,043,107,637.40 and 419,906,077.20 is: 629,859,115.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,405,091.60 : 1,043,107,637.40 = 419,906,077.20 : x
  2. Step 2: Convert to fraction form
    695,405,091.60/1,043,107,637.40 = 419,906,077.20/x
  3. Step 3: Cross multiply
    695,405,091.60x = 1,043,107,637.40 × 419,906,077.20
  4. Step 4: Simplify right side
    695,405,091.60x = 438,007,236,117,993,984
  5. Step 5: Solve for x
    x = 438,007,236,117,993,984/695,405,091.60
  6. Step 6: Final answer
    x = 629,859,115.80

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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.