Home / 1,291,632,035.73-1,781,893,067.04-789,862,754.85

Finding the Fourth Proportional to 1,291,632,035.73, 1,781,893,067.04 and 789,862,754.85

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Solution

The fourth proportional to 1,291,632,035.73, 1,781,893,067.04 and 789,862,754.85 is: 1,089,668,673.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,632,035.73 : 1,781,893,067.04 = 789,862,754.85 : x
  2. Step 2: Convert to fraction form
    1,291,632,035.73/1,781,893,067.04 = 789,862,754.85/x
  3. Step 3: Cross multiply
    1,291,632,035.73x = 1,781,893,067.04 × 789,862,754.85
  4. Step 4: Simplify right side
    1,291,632,035.73x = 1,407,450,966,780,330,240
  5. Step 5: Solve for x
    x = 1,407,450,966,780,330,240/1,291,632,035.73
  6. Step 6: Final answer
    x = 1,089,668,673.31

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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.