Finding the Fourth Proportional to 7,117,133.97, 9,821,627.18 and 3,853,948.52
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Solution
The fourth proportional to 7,117,133.97, 9,821,627.18 and 3,853,948.52 is: 5,318,439.37
Step by Step Solution
- Step 1: Write the proportion equation
7,117,133.97 : 9,821,627.18 = 3,853,948.52 : x - Step 2: Convert to fraction form
7,117,133.97/9,821,627.18 = 3,853,948.52/x - Step 3: Cross multiply
7,117,133.97x = 9,821,627.18 × 3,853,948.52 - Step 4: Simplify right side
7,117,133.97x = 37,852,045,517,258.30 - Step 5: Solve for x
x = 37,852,045,517,258.30/7,117,133.97 - Step 6: Final answer
x = 5,318,439.37
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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.