Finding the Fourth Proportional to 7,390,694.91, 11,017,725.87 and 7,274,220.75
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Solution
The fourth proportional to 7,390,694.91, 11,017,725.87 and 7,274,220.75 is: 10,844,091.27
Step by Step Solution
- Step 1: Write the proportion equation
7,390,694.91 : 11,017,725.87 = 7,274,220.75 : x - Step 2: Convert to fraction form
7,390,694.91/11,017,725.87 = 7,274,220.75/x - Step 3: Cross multiply
7,390,694.91x = 11,017,725.87 × 7,274,220.75 - Step 4: Simplify right side
7,390,694.91x = 80,145,370,141,365.80 - Step 5: Solve for x
x = 80,145,370,141,365.80/7,390,694.91 - Step 6: Final answer
x = 10,844,091.27
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.