Finding the Fourth Proportional to 4,138,349.99, 5,707,687.70 and 2,688,512.56
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Solution
The fourth proportional to 4,138,349.99, 5,707,687.70 and 2,688,512.56 is: 3,708,045.51
Step by Step Solution
- Step 1: Write the proportion equation
4,138,349.99 : 5,707,687.70 = 2,688,512.56 : x - Step 2: Convert to fraction form
4,138,349.99/5,707,687.70 = 2,688,512.56/x - Step 3: Cross multiply
4,138,349.99x = 5,707,687.70 × 2,688,512.56 - Step 4: Simplify right side
4,138,349.99x = 15,345,190,062,459.57 - Step 5: Solve for x
x = 15,345,190,062,459.57/4,138,349.99 - Step 6: Final answer
x = 3,708,045.51
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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.