Home / 280,451,721.82-420,686,152.88-96,216,613.61

Finding the Fourth Proportional to 280,451,721.82, 420,686,152.88 and 96,216,613.61

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Solution

The fourth proportional to 280,451,721.82, 420,686,152.88 and 96,216,613.61 is: 144,327,860.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,451,721.82 : 420,686,152.88 = 96,216,613.61 : x
  2. Step 2: Convert to fraction form
    280,451,721.82/420,686,152.88 = 96,216,613.61/x
  3. Step 3: Cross multiply
    280,451,721.82x = 420,686,152.88 × 96,216,613.61
  4. Step 4: Simplify right side
    280,451,721.82x = 40,476,997,022,732,344
  5. Step 5: Solve for x
    x = 40,476,997,022,732,344/280,451,721.82
  6. Step 6: Final answer
    x = 144,327,860.64

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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.