Finding the Fourth Proportional to 5,209,505.92, 7,189,023.01 and 2,886,389.97
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Solution
The fourth proportional to 5,209,505.92, 7,189,023.01 and 2,886,389.97 is: 3,983,165.43
Step by Step Solution
- Step 1: Write the proportion equation
5,209,505.92 : 7,189,023.01 = 2,886,389.97 : x - Step 2: Convert to fraction form
5,209,505.92/7,189,023.01 = 2,886,389.97/x - Step 3: Cross multiply
5,209,505.92x = 7,189,023.01 × 2,886,389.97 - Step 4: Simplify right side
5,209,505.92x = 20,750,323,910,163.21 - Step 5: Solve for x
x = 20,750,323,910,163.21/5,209,505.92 - Step 6: Final answer
x = 3,983,165.43
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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.