Home / 13,149,906.98-18,146,819.12-7,348,687.20

Finding the Fourth Proportional to 13,149,906.98, 18,146,819.12 and 7,348,687.20

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Solution

The fourth proportional to 13,149,906.98, 18,146,819.12 and 7,348,687.20 is: 10,141,158.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149,906.98 : 18,146,819.12 = 7,348,687.20 : x
  2. Step 2: Convert to fraction form
    13,149,906.98/18,146,819.12 = 7,348,687.20/x
  3. Step 3: Cross multiply
    13,149,906.98x = 18,146,819.12 × 7,348,687.20
  4. Step 4: Simplify right side
    13,149,906.98x = 133,355,297,351,115.81
  5. Step 5: Solve for x
    x = 133,355,297,351,115.81/13,149,906.98
  6. Step 6: Final answer
    x = 10,141,158.99

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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.