Home / 18,721,862.10-28,082,793.15-8,644,166.10

Finding the Fourth Proportional to 18,721,862.10, 28,082,793.15 and 8,644,166.10

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Solution

The fourth proportional to 18,721,862.10, 28,082,793.15 and 8,644,166.10 is: 12,966,249.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721,862.10 : 28,082,793.15 = 8,644,166.10 : x
  2. Step 2: Convert to fraction form
    18,721,862.10/28,082,793.15 = 8,644,166.10/x
  3. Step 3: Cross multiply
    18,721,862.10x = 28,082,793.15 × 8,644,166.10
  4. Step 4: Simplify right side
    18,721,862.10x = 242,752,328,540,542.19
  5. Step 5: Solve for x
    x = 242,752,328,540,542.19/18,721,862.10
  6. Step 6: Final answer
    x = 12,966,249.15

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Double scale
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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.