Home / 1,992,003,138.40-2,988,004,707.60-1,397,958,388.60

Finding the Fourth Proportional to 1,992,003,138.40, 2,988,004,707.60 and 1,397,958,388.60

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Solution

The fourth proportional to 1,992,003,138.40, 2,988,004,707.60 and 1,397,958,388.60 is: 2,096,937,582.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,003,138.40 : 2,988,004,707.60 = 1,397,958,388.60 : x
  2. Step 2: Convert to fraction form
    1,992,003,138.40/2,988,004,707.60 = 1,397,958,388.60/x
  3. Step 3: Cross multiply
    1,992,003,138.40x = 2,988,004,707.60 × 1,397,958,388.60
  4. Step 4: Simplify right side
    1,992,003,138.40x = 4,177,106,246,165,709,824
  5. Step 5: Solve for x
    x = 4,177,106,246,165,709,824/1,992,003,138.40
  6. Step 6: Final answer
    x = 2,096,937,582.90

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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.