Finding the Fourth Proportional to 7,786,439.92, 11,679,656.96 and 5,669,992.56
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Solution
The fourth proportional to 7,786,439.92, 11,679,656.96 and 5,669,992.56 is: 8,504,986.71
Step by Step Solution
- Step 1: Write the proportion equation
7,786,439.92 : 11,679,656.96 = 5,669,992.56 : x - Step 2: Convert to fraction form
7,786,439.92/11,679,656.96 = 5,669,992.56/x - Step 3: Cross multiply
7,786,439.92x = 11,679,656.96 × 5,669,992.56 - Step 4: Simplify right side
7,786,439.92x = 66,223,568,066,552.22 - Step 5: Solve for x
x = 66,223,568,066,552.22/7,786,439.92 - Step 6: Final answer
x = 8,504,986.71
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.