Finding the Fourth Proportional to 5,213,775.37, 7,193,659.12 and 3,147,157.57
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Solution
The fourth proportional to 5,213,775.37, 7,193,659.12 and 3,147,157.57 is: 4,342,262.02
Step by Step Solution
- Step 1: Write the proportion equation
5,213,775.37 : 7,193,659.12 = 3,147,157.57 : x - Step 2: Convert to fraction form
5,213,775.37/7,193,659.12 = 3,147,157.57/x - Step 3: Cross multiply
5,213,775.37x = 7,193,659.12 × 3,147,157.57 - Step 4: Simplify right side
5,213,775.37x = 22,639,578,755,507.54 - Step 5: Solve for x
x = 22,639,578,755,507.54/5,213,775.37 - Step 6: Final answer
x = 4,342,262.02
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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.