Home / 825,217,999.80-1,237,826,999.70-743,588,662.20

Finding the Fourth Proportional to 825,217,999.80, 1,237,826,999.70 and 743,588,662.20

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Solution

The fourth proportional to 825,217,999.80, 1,237,826,999.70 and 743,588,662.20 is: 1,115,382,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,217,999.80 : 1,237,826,999.70 = 743,588,662.20 : x
  2. Step 2: Convert to fraction form
    825,217,999.80/1,237,826,999.70 = 743,588,662.20/x
  3. Step 3: Cross multiply
    825,217,999.80x = 1,237,826,999.70 × 743,588,662.20
  4. Step 4: Simplify right side
    825,217,999.80x = 920,434,122,741,962,880
  5. Step 5: Solve for x
    x = 920,434,122,741,962,880/825,217,999.80
  6. Step 6: Final answer
    x = 1,115,382,993.30

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1.5x scale

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.