Finding the Fourth Proportional to 71,157,082.97, 98,196,858.49 and 38,562,034.97
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Solution
The fourth proportional to 71,157,082.97, 98,196,858.49 and 38,562,034.97 is: 53,215,653.77
Step by Step Solution
- Step 1: Write the proportion equation
71,157,082.97 : 98,196,858.49 = 38,562,034.97 : x - Step 2: Convert to fraction form
71,157,082.97/98,196,858.49 = 38,562,034.97/x - Step 3: Cross multiply
71,157,082.97x = 98,196,858.49 × 38,562,034.97 - Step 4: Simplify right side
71,157,082.97x = 3,786,670,690,640,943 - Step 5: Solve for x
x = 3,786,670,690,640,943/71,157,082.97 - Step 6: Final answer
x = 53,215,653.77
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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.