Home / 18,987,920.64-26,203,306.80-10,286,129.22

Finding the Fourth Proportional to 18,987,920.64, 26,203,306.80 and 10,286,129.22

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Solution

The fourth proportional to 18,987,920.64, 26,203,306.80 and 10,286,129.22 is: 14,194,845.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,987,920.64 : 26,203,306.80 = 10,286,129.22 : x
  2. Step 2: Convert to fraction form
    18,987,920.64/26,203,306.80 = 10,286,129.22/x
  3. Step 3: Cross multiply
    18,987,920.64x = 26,203,306.80 × 10,286,129.22
  4. Step 4: Simplify right side
    18,987,920.64x = 269,530,599,736,104.72
  5. Step 5: Solve for x
    x = 269,530,599,736,104.72/18,987,920.64
  6. Step 6: Final answer
    x = 14,194,845.49

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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.