Home / 28,671,930.80-39,567,247.08-15,794,874.80

Finding the Fourth Proportional to 28,671,930.80, 39,567,247.08 and 15,794,874.80

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Solution

The fourth proportional to 28,671,930.80, 39,567,247.08 and 15,794,874.80 is: 21,796,917.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,671,930.80 : 39,567,247.08 = 15,794,874.80 : x
  2. Step 2: Convert to fraction form
    28,671,930.80/39,567,247.08 = 15,794,874.80/x
  3. Step 3: Cross multiply
    28,671,930.80x = 39,567,247.08 × 15,794,874.80
  4. Step 4: Simplify right side
    28,671,930.80x = 624,959,713,809,265.62
  5. Step 5: Solve for x
    x = 624,959,713,809,265.62/28,671,930.80
  6. Step 6: Final answer
    x = 21,796,917.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.