Home / 1,915,218,749.25-2,872,949,494.14-809,617,553.37

Finding the Fourth Proportional to 1,915,218,749.25, 2,872,949,494.14 and 809,617,553.37

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Solution

The fourth proportional to 1,915,218,749.25, 2,872,949,494.14 and 809,617,553.37 is: 1,214,477,636.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,218,749.25 : 2,872,949,494.14 = 809,617,553.37 : x
  2. Step 2: Convert to fraction form
    1,915,218,749.25/2,872,949,494.14 = 809,617,553.37/x
  3. Step 3: Cross multiply
    1,915,218,749.25x = 2,872,949,494.14 × 809,617,553.37
  4. Step 4: Simplify right side
    1,915,218,749.25x = 2,325,990,340,401,205,760
  5. Step 5: Solve for x
    x = 2,325,990,340,401,205,760/1,915,218,749.25
  6. Step 6: Final answer
    x = 1,214,477,636.73

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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.