Home / 280,442,101.20-420,662,586.40-263,376,352.12

Finding the Fourth Proportional to 280,442,101.20, 420,662,586.40 and 263,376,352.12

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Solution

The fourth proportional to 280,442,101.20, 420,662,586.40 and 263,376,352.12 is: 395,063,997.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,442,101.20 : 420,662,586.40 = 263,376,352.12 : x
  2. Step 2: Convert to fraction form
    280,442,101.20/420,662,586.40 = 263,376,352.12/x
  3. Step 3: Cross multiply
    280,442,101.20x = 420,662,586.40 × 263,376,352.12
  4. Step 4: Simplify right side
    280,442,101.20x = 110,792,577,479,396,320
  5. Step 5: Solve for x
    x = 110,792,577,479,396,320/280,442,101.20
  6. Step 6: Final answer
    x = 395,063,997.19

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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.