Home / 8,520,721.60-12,781,147.20-2,840,936.80

Finding the Fourth Proportional to 8,520,721.60, 12,781,147.20 and 2,840,936.80

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Solution

The fourth proportional to 8,520,721.60, 12,781,147.20 and 2,840,936.80 is: 4,261,426.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520,721.60 : 12,781,147.20 = 2,840,936.80 : x
  2. Step 2: Convert to fraction form
    8,520,721.60/12,781,147.20 = 2,840,936.80/x
  3. Step 3: Cross multiply
    8,520,721.60x = 12,781,147.20 × 2,840,936.80
  4. Step 4: Simplify right side
    8,520,721.60x = 36,310,431,426,696.95
  5. Step 5: Solve for x
    x = 36,310,431,426,696.95/8,520,721.60
  6. Step 6: Final answer
    x = 4,261,426.81

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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.