Finding the Fourth Proportional to 5,430,431.88, 8,147,416.86 and 2,590,174.44
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Solution
The fourth proportional to 5,430,431.88, 8,147,416.86 and 2,590,174.44 is: 3,886,105.45
Step by Step Solution
- Step 1: Write the proportion equation
5,430,431.88 : 8,147,416.86 = 2,590,174.44 : x - Step 2: Convert to fraction form
5,430,431.88/8,147,416.86 = 2,590,174.44/x - Step 3: Cross multiply
5,430,431.88x = 8,147,416.86 × 2,590,174.44 - Step 4: Simplify right side
5,430,431.88x = 21,103,230,902,797.06 - Step 5: Solve for x
x = 21,103,230,902,797.06/5,430,431.88 - Step 6: Final answer
x = 3,886,105.45
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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.