Home / 1,138,003,704.48-1,570,479,614.83-636,233,629.60

Finding the Fourth Proportional to 1,138,003,704.48, 1,570,479,614.83 and 636,233,629.60

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Solution

The fourth proportional to 1,138,003,704.48, 1,570,479,614.83 and 636,233,629.60 is: 878,021,698.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,003,704.48 : 1,570,479,614.83 = 636,233,629.60 : x
  2. Step 2: Convert to fraction form
    1,138,003,704.48/1,570,479,614.83 = 636,233,629.60/x
  3. Step 3: Cross multiply
    1,138,003,704.48x = 1,570,479,614.83 × 636,233,629.60
  4. Step 4: Simplify right side
    1,138,003,704.48x = 999,191,945,556,100,864
  5. Step 5: Solve for x
    x = 999,191,945,556,100,864/1,138,003,704.48
  6. Step 6: Final answer
    x = 878,021,698.54

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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.