Home / 18,638,201.64-25,728,654.06-12,530,173.08

Finding the Fourth Proportional to 18,638,201.64, 25,728,654.06 and 12,530,173.08

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Solution

The fourth proportional to 18,638,201.64, 25,728,654.06 and 12,530,173.08 is: 17,296,973.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638,201.64 : 25,728,654.06 = 12,530,173.08 : x
  2. Step 2: Convert to fraction form
    18,638,201.64/25,728,654.06 = 12,530,173.08/x
  3. Step 3: Cross multiply
    18,638,201.64x = 25,728,654.06 × 12,530,173.08
  4. Step 4: Simplify right side
    18,638,201.64x = 322,384,488,487,244.69
  5. Step 5: Solve for x
    x = 322,384,488,487,244.69/18,638,201.64
  6. Step 6: Final answer
    x = 17,296,973.96

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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.