Home / 18,530,653.91-25,573,750.95-11,921,144.63

Finding the Fourth Proportional to 18,530,653.91, 25,573,750.95 and 11,921,144.63

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Solution

The fourth proportional to 18,530,653.91, 25,573,750.95 and 11,921,144.63 is: 16,452,111.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,530,653.91 : 25,573,750.95 = 11,921,144.63 : x
  2. Step 2: Convert to fraction form
    18,530,653.91/25,573,750.95 = 11,921,144.63/x
  3. Step 3: Cross multiply
    18,530,653.91x = 25,573,750.95 × 11,921,144.63
  4. Step 4: Simplify right side
    18,530,653.91x = 304,868,383,806,549.94
  5. Step 5: Solve for x
    x = 304,868,383,806,549.94/18,530,653.91
  6. Step 6: Final answer
    x = 16,452,111.47

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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.