Home / 18,723,286.30-28,084,929.45-8,645,590.30

Finding the Fourth Proportional to 18,723,286.30, 28,084,929.45 and 8,645,590.30

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Solution

The fourth proportional to 18,723,286.30, 28,084,929.45 and 8,645,590.30 is: 12,968,385.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,286.30 : 28,084,929.45 = 8,645,590.30 : x
  2. Step 2: Convert to fraction form
    18,723,286.30/28,084,929.45 = 8,645,590.30/x
  3. Step 3: Cross multiply
    18,723,286.30x = 28,084,929.45 × 8,645,590.30
  4. Step 4: Simplify right side
    18,723,286.30x = 242,810,793,629,104.34
  5. Step 5: Solve for x
    x = 242,810,793,629,104.34/18,723,286.30
  6. Step 6: Final answer
    x = 12,968,385.45

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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.