Home / 19,467,981.78-29,205,121.95-8,109,578.58

Finding the Fourth Proportional to 19,467,981.78, 29,205,121.95 and 8,109,578.58

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Solution

The fourth proportional to 19,467,981.78, 29,205,121.95 and 8,109,578.58 is: 12,165,679.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,467,981.78 : 29,205,121.95 = 8,109,578.58 : x
  2. Step 2: Convert to fraction form
    19,467,981.78/29,205,121.95 = 8,109,578.58/x
  3. Step 3: Cross multiply
    19,467,981.78x = 29,205,121.95 × 8,109,578.58
  4. Step 4: Simplify right side
    19,467,981.78x = 236,841,231,392,007.81
  5. Step 5: Solve for x
    x = 236,841,231,392,007.81/19,467,981.78
  6. Step 6: Final answer
    x = 12,165,679.73

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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.