Home / 3,989,088,019.20-5,983,632,028.80-1,917,743,577.60

Finding the Fourth Proportional to 3,989,088,019.20, 5,983,632,028.80 and 1,917,743,577.60

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Solution

The fourth proportional to 3,989,088,019.20, 5,983,632,028.80 and 1,917,743,577.60 is: 2,876,615,366.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989,088,019.20 : 5,983,632,028.80 = 1,917,743,577.60 : x
  2. Step 2: Convert to fraction form
    3,989,088,019.20/5,983,632,028.80 = 1,917,743,577.60/x
  3. Step 3: Cross multiply
    3,989,088,019.20x = 5,983,632,028.80 × 1,917,743,577.60
  4. Step 4: Simplify right side
    3,989,088,019.20x = 11,475,071,893,952,858,112
  5. Step 5: Solve for x
    x = 11,475,071,893,952,858,112/3,989,088,019.20
  6. Step 6: Final answer
    x = 2,876,615,366.40

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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.