Home / 878,083,546.31-1,317,202,739.75-247,821,218.49

Finding the Fourth Proportional to 878,083,546.31, 1,317,202,739.75 and 247,821,218.49

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Solution

The fourth proportional to 878,083,546.31, 1,317,202,739.75 and 247,821,218.49 is: 371,753,678.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,083,546.31 : 1,317,202,739.75 = 247,821,218.49 : x
  2. Step 2: Convert to fraction form
    878,083,546.31/1,317,202,739.75 = 247,821,218.49/x
  3. Step 3: Cross multiply
    878,083,546.31x = 1,317,202,739.75 × 247,821,218.49
  4. Step 4: Simplify right side
    878,083,546.31x = 326,430,787,957,949,696
  5. Step 5: Solve for x
    x = 326,430,787,957,949,696/878,083,546.31
  6. Step 6: Final answer
    x = 371,753,678.03

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1.5x scale

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.