Home / 13,590,982.20-18,755,558.50-7,479,410.70

Finding the Fourth Proportional to 13,590,982.20, 18,755,558.50 and 7,479,410.70

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Solution

The fourth proportional to 13,590,982.20, 18,755,558.50 and 7,479,410.70 is: 10,321,588.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590,982.20 : 18,755,558.50 = 7,479,410.70 : x
  2. Step 2: Convert to fraction form
    13,590,982.20/18,755,558.50 = 7,479,410.70/x
  3. Step 3: Cross multiply
    13,590,982.20x = 18,755,558.50 × 7,479,410.70
  4. Step 4: Simplify right side
    13,590,982.20x = 140,280,524,929,375.95
  5. Step 5: Solve for x
    x = 140,280,524,929,375.95/13,590,982.20
  6. Step 6: Final answer
    x = 10,321,588.45

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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.