Home / 1,339,769,478.84-2,009,320,097.51-394,179,406.83

Finding the Fourth Proportional to 1,339,769,478.84, 2,009,320,097.51 and 394,179,406.83

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Solution

The fourth proportional to 1,339,769,478.84, 2,009,320,097.51 and 394,179,406.83 is: 591,170,807.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,769,478.84 : 2,009,320,097.51 = 394,179,406.83 : x
  2. Step 2: Convert to fraction form
    1,339,769,478.84/2,009,320,097.51 = 394,179,406.83/x
  3. Step 3: Cross multiply
    1,339,769,478.84x = 2,009,320,097.51 × 394,179,406.83
  4. Step 4: Simplify right side
    1,339,769,478.84x = 792,032,604,166,118,656
  5. Step 5: Solve for x
    x = 792,032,604,166,118,656/1,339,769,478.84
  6. Step 6: Final answer
    x = 591,170,807.12

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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.