Home / 13,728,317.94-18,945,081.09-7,616,731.86

Finding the Fourth Proportional to 13,728,317.94, 18,945,081.09 and 7,616,731.86

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Solution

The fourth proportional to 13,728,317.94, 18,945,081.09 and 7,616,731.86 is: 10,511,091.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728,317.94 : 18,945,081.09 = 7,616,731.86 : x
  2. Step 2: Convert to fraction form
    13,728,317.94/18,945,081.09 = 7,616,731.86/x
  3. Step 3: Cross multiply
    13,728,317.94x = 18,945,081.09 × 7,616,731.86
  4. Step 4: Simplify right side
    13,728,317.94x = 144,299,602,728,486.53
  5. Step 5: Solve for x
    x = 144,299,602,728,486.53/13,728,317.94
  6. Step 6: Final answer
    x = 10,511,091.26

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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.