Home / 1,981,719,226.20-2,972,578,839.30-1,328,684,525.40

Finding the Fourth Proportional to 1,981,719,226.20, 2,972,578,839.30 and 1,328,684,525.40

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Solution

The fourth proportional to 1,981,719,226.20, 2,972,578,839.30 and 1,328,684,525.40 is: 1,993,026,788.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,719,226.20 : 2,972,578,839.30 = 1,328,684,525.40 : x
  2. Step 2: Convert to fraction form
    1,981,719,226.20/2,972,578,839.30 = 1,328,684,525.40/x
  3. Step 3: Cross multiply
    1,981,719,226.20x = 2,972,578,839.30 × 1,328,684,525.40
  4. Step 4: Simplify right side
    1,981,719,226.20x = 3,949,619,504,309,404,160
  5. Step 5: Solve for x
    x = 3,949,619,504,309,404,160/1,981,719,226.20
  6. Step 6: Final answer
    x = 1,993,026,788.10

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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.