Home / 1,338,444,708.20-2,007,667,062.30-418,319,570.60

Finding the Fourth Proportional to 1,338,444,708.20, 2,007,667,062.30 and 418,319,570.60

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Solution

The fourth proportional to 1,338,444,708.20, 2,007,667,062.30 and 418,319,570.60 is: 627,479,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,444,708.20 : 2,007,667,062.30 = 418,319,570.60 : x
  2. Step 2: Convert to fraction form
    1,338,444,708.20/2,007,667,062.30 = 418,319,570.60/x
  3. Step 3: Cross multiply
    1,338,444,708.20x = 2,007,667,062.30 × 418,319,570.60
  4. Step 4: Simplify right side
    1,338,444,708.20x = 839,846,423,409,099,520
  5. Step 5: Solve for x
    x = 839,846,423,409,099,520/1,338,444,708.20
  6. Step 6: Final answer
    x = 627,479,355.90

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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.