Home / 280,185,605.10-420,278,407.65-264,313,233.90

Finding the Fourth Proportional to 280,185,605.10, 420,278,407.65 and 264,313,233.90

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Solution

The fourth proportional to 280,185,605.10, 420,278,407.65 and 264,313,233.90 is: 396,469,850.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,185,605.10 : 420,278,407.65 = 264,313,233.90 : x
  2. Step 2: Convert to fraction form
    280,185,605.10/420,278,407.65 = 264,313,233.90/x
  3. Step 3: Cross multiply
    280,185,605.10x = 420,278,407.65 × 264,313,233.90
  4. Step 4: Simplify right side
    280,185,605.10x = 111,085,145,064,314,000
  5. Step 5: Solve for x
    x = 111,085,145,064,314,000/280,185,605.10
  6. Step 6: Final answer
    x = 396,469,850.85

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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.