Home / 18,640,216.44-25,710,247.92-12,442,138.14

Finding the Fourth Proportional to 18,640,216.44, 25,710,247.92 and 12,442,138.14

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Solution

The fourth proportional to 18,640,216.44, 25,710,247.92 and 12,442,138.14 is: 17,161,305.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,640,216.44 : 25,710,247.92 = 12,442,138.14 : x
  2. Step 2: Convert to fraction form
    18,640,216.44/25,710,247.92 = 12,442,138.14/x
  3. Step 3: Cross multiply
    18,640,216.44x = 25,710,247.92 × 12,442,138.14
  4. Step 4: Simplify right side
    18,640,216.44x = 319,890,456,234,287.69
  5. Step 5: Solve for x
    x = 319,890,456,234,287.69/18,640,216.44
  6. Step 6: Final answer
    x = 17,161,305.89

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1.5x scale

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.