Home / 18,758,963.80-28,132,916.10-7,395,635.80

Finding the Fourth Proportional to 18,758,963.80, 28,132,916.10 and 7,395,635.80

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Solution

The fourth proportional to 18,758,963.80, 28,132,916.10 and 7,395,635.80 is: 11,091,273.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,758,963.80 : 28,132,916.10 = 7,395,635.80 : x
  2. Step 2: Convert to fraction form
    18,758,963.80/28,132,916.10 = 7,395,635.80/x
  3. Step 3: Cross multiply
    18,758,963.80x = 28,132,916.10 × 7,395,635.80
  4. Step 4: Simplify right side
    18,758,963.80x = 208,060,801,467,556.38
  5. Step 5: Solve for x
    x = 208,060,801,467,556.38/18,758,963.80
  6. Step 6: Final answer
    x = 11,091,273.68

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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.