Home / 18,640,219.91-25,710,252.73-12,442,141.62

Finding the Fourth Proportional to 18,640,219.91, 25,710,252.73 and 12,442,141.62

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Solution

The fourth proportional to 18,640,219.91, 25,710,252.73 and 12,442,141.62 is: 17,161,310.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,640,219.91 : 25,710,252.73 = 12,442,141.62 : x
  2. Step 2: Convert to fraction form
    18,640,219.91/25,710,252.73 = 12,442,141.62/x
  3. Step 3: Cross multiply
    18,640,219.91x = 25,710,252.73 × 12,442,141.62
  4. Step 4: Simplify right side
    18,640,219.91x = 319,890,605,521,546.25
  5. Step 5: Solve for x
    x = 319,890,605,521,546.25/18,640,219.91
  6. Step 6: Final answer
    x = 17,161,310.71

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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.