Home / 13,728,326.94-18,945,093.51-7,616,740.86

Finding the Fourth Proportional to 13,728,326.94, 18,945,093.51 and 7,616,740.86

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Solution

The fourth proportional to 13,728,326.94, 18,945,093.51 and 7,616,740.86 is: 10,511,103.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728,326.94 : 18,945,093.51 = 7,616,740.86 : x
  2. Step 2: Convert to fraction form
    13,728,326.94/18,945,093.51 = 7,616,740.86/x
  3. Step 3: Cross multiply
    13,728,326.94x = 18,945,093.51 × 7,616,740.86
  4. Step 4: Simplify right side
    13,728,326.94x = 144,299,867,834,137.84
  5. Step 5: Solve for x
    x = 144,299,867,834,137.84/13,728,326.94
  6. Step 6: Final answer
    x = 10,511,103.68

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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.