Finding the Fourth Proportional to 7,222,929.26, 9,967,578.81 and 3,959,684.69
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Solution
The fourth proportional to 7,222,929.26, 9,967,578.81 and 3,959,684.69 is: 5,464,330.02
Step by Step Solution
- Step 1: Write the proportion equation
7,222,929.26 : 9,967,578.81 = 3,959,684.69 : x - Step 2: Convert to fraction form
7,222,929.26/9,967,578.81 = 3,959,684.69/x - Step 3: Cross multiply
7,222,929.26x = 9,967,578.81 × 3,959,684.69 - Step 4: Simplify right side
7,222,929.26x = 39,468,469,210,325.42 - Step 5: Solve for x
x = 39,468,469,210,325.42/7,222,929.26 - Step 6: Final answer
x = 5,464,330.02
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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.