Home / 319,971,771.79-479,957,657.78-89,940,856.44

Finding the Fourth Proportional to 319,971,771.79, 479,957,657.78 and 89,940,856.44

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Solution

The fourth proportional to 319,971,771.79, 479,957,657.78 and 89,940,856.44 is: 134,911,284.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,971,771.79 : 479,957,657.78 = 89,940,856.44 : x
  2. Step 2: Convert to fraction form
    319,971,771.79/479,957,657.78 = 89,940,856.44/x
  3. Step 3: Cross multiply
    319,971,771.79x = 479,957,657.78 × 89,940,856.44
  4. Step 4: Simplify right side
    319,971,771.79x = 43,167,802,797,694,320
  5. Step 5: Solve for x
    x = 43,167,802,797,694,320/319,971,771.79
  6. Step 6: Final answer
    x = 134,911,284.69

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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.