Home / 280,185,366.60-420,278,049.90-264,312,995.40

Finding the Fourth Proportional to 280,185,366.60, 420,278,049.90 and 264,312,995.40

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Solution

The fourth proportional to 280,185,366.60, 420,278,049.90 and 264,312,995.40 is: 396,469,493.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,185,366.60 : 420,278,049.90 = 264,312,995.40 : x
  2. Step 2: Convert to fraction form
    280,185,366.60/420,278,049.90 = 264,312,995.40/x
  3. Step 3: Cross multiply
    280,185,366.60x = 420,278,049.90 × 264,312,995.40
  4. Step 4: Simplify right side
    280,185,366.60x = 111,084,950,269,939,664
  5. Step 5: Solve for x
    x = 111,084,950,269,939,664/280,185,366.60
  6. Step 6: Final answer
    x = 396,469,493.10

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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.