Finding the Fourth Proportional to 7,222,968.75, 9,967,480.92 and 3,959,671.94
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Solution
The fourth proportional to 7,222,968.75, 9,967,480.92 and 3,959,671.94 is: 5,464,228.88
Step by Step Solution
- Step 1: Write the proportion equation
7,222,968.75 : 9,967,480.92 = 3,959,671.94 : x - Step 2: Convert to fraction form
7,222,968.75/9,967,480.92 = 3,959,671.94/x - Step 3: Cross multiply
7,222,968.75x = 9,967,480.92 × 3,959,671.94 - Step 4: Simplify right side
7,222,968.75x = 39,467,954,498,950.04 - Step 5: Solve for x
x = 39,467,954,498,950.04/7,222,968.75 - Step 6: Final answer
x = 5,464,228.88
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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.