Finding the Fourth Proportional to 13,085,501.97, 18,057,122.73 and 7,284,134.55
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Solution
The fourth proportional to 13,085,501.97, 18,057,122.73 and 7,284,134.55 is: 10,051,621.39
Step by Step Solution
- Step 1: Write the proportion equation
13,085,501.97 : 18,057,122.73 = 7,284,134.55 : x - Step 2: Convert to fraction form
13,085,501.97/18,057,122.73 = 7,284,134.55/x - Step 3: Cross multiply
13,085,501.97x = 18,057,122.73 × 7,284,134.55 - Step 4: Simplify right side
13,085,501.97x = 131,530,511,551,183.33 - Step 5: Solve for x
x = 131,530,511,551,183.33/13,085,501.97 - Step 6: Final answer
x = 10,051,621.39
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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.