Finding the Fourth Proportional to 7,790,915.63, 10,751,276.04 and 4,258,553.74
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Solution
The fourth proportional to 7,790,915.63, 10,751,276.04 and 4,258,553.74 is: 5,876,701.65
Step by Step Solution
- Step 1: Write the proportion equation
7,790,915.63 : 10,751,276.04 = 4,258,553.74 : x - Step 2: Convert to fraction form
7,790,915.63/10,751,276.04 = 4,258,553.74/x - Step 3: Cross multiply
7,790,915.63x = 10,751,276.04 × 4,258,553.74 - Step 4: Simplify right side
7,790,915.63x = 45,784,886,787,383.91 - Step 5: Solve for x
x = 45,784,886,787,383.91/7,790,915.63 - Step 6: Final answer
x = 5,876,701.65
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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.