Home / 18,622,198.32-25,710,440.88-12,751,656.48

Finding the Fourth Proportional to 18,622,198.32, 25,710,440.88 and 12,751,656.48

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Solution

The fourth proportional to 18,622,198.32, 25,710,440.88 and 12,751,656.48 is: 17,605,370.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,622,198.32 : 25,710,440.88 = 12,751,656.48 : x
  2. Step 2: Convert to fraction form
    18,622,198.32/25,710,440.88 = 12,751,656.48/x
  3. Step 3: Cross multiply
    18,622,198.32x = 25,710,440.88 × 12,751,656.48
  4. Step 4: Simplify right side
    18,622,198.32x = 327,850,710,051,108.88
  5. Step 5: Solve for x
    x = 327,850,710,051,108.88/18,622,198.32
  6. Step 6: Final answer
    x = 17,605,370.99

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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.