Home / 1,339,769,438.54-2,009,320,036.74-394,179,366.38

Finding the Fourth Proportional to 1,339,769,438.54, 2,009,320,036.74 and 394,179,366.38

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Solution

The fourth proportional to 1,339,769,438.54, 2,009,320,036.74 and 394,179,366.38 is: 591,170,746.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,769,438.54 : 2,009,320,036.74 = 394,179,366.38 : x
  2. Step 2: Convert to fraction form
    1,339,769,438.54/2,009,320,036.74 = 394,179,366.38/x
  3. Step 3: Cross multiply
    1,339,769,438.54x = 2,009,320,036.74 × 394,179,366.38
  4. Step 4: Simplify right side
    1,339,769,438.54x = 792,032,498,926,764,928
  5. Step 5: Solve for x
    x = 792,032,498,926,764,928/1,339,769,438.54
  6. Step 6: Final answer
    x = 591,170,746.36

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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.