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Finding the Fourth Proportional to 18,353,978.60, 27,530,093.10 and 6,222,252.20

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Solution

The fourth proportional to 18,353,978.60, 27,530,093.10 and 6,222,252.20 is: 9,333,081.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,353,978.60 : 27,530,093.10 = 6,222,252.20 : x
  2. Step 2: Convert to fraction form
    18,353,978.60/27,530,093.10 = 6,222,252.20/x
  3. Step 3: Cross multiply
    18,353,978.60x = 27,530,093.10 × 6,222,252.20
  4. Step 4: Simplify right side
    18,353,978.60x = 171,299,182,357,679.84
  5. Step 5: Solve for x
    x = 171,299,182,357,679.84/18,353,978.60
  6. Step 6: Final answer
    x = 9,333,081.73

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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.