Home / 13,728,332.68-18,945,101.44-7,616,746.60

Finding the Fourth Proportional to 13,728,332.68, 18,945,101.44 and 7,616,746.60

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Solution

The fourth proportional to 13,728,332.68, 18,945,101.44 and 7,616,746.60 is: 10,511,111.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728,332.68 : 18,945,101.44 = 7,616,746.60 : x
  2. Step 2: Convert to fraction form
    13,728,332.68/18,945,101.44 = 7,616,746.60/x
  3. Step 3: Cross multiply
    13,728,332.68x = 18,945,101.44 × 7,616,746.60
  4. Step 4: Simplify right side
    13,728,332.68x = 144,300,036,979,775.09
  5. Step 5: Solve for x
    x = 144,300,036,979,775.09/13,728,332.68
  6. Step 6: Final answer
    x = 10,511,111.61

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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.