Finding the Fourth Proportional to 4,825,631.56, 6,661,956.96 and 3,720,649.60
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Solution
The fourth proportional to 4,825,631.56, 6,661,956.96 and 3,720,649.60 is: 5,136,489.84
Step by Step Solution
- Step 1: Write the proportion equation
4,825,631.56 : 6,661,956.96 = 3,720,649.60 : x - Step 2: Convert to fraction form
4,825,631.56/6,661,956.96 = 3,720,649.60/x - Step 3: Cross multiply
4,825,631.56x = 6,661,956.96 × 3,720,649.60 - Step 4: Simplify right side
4,825,631.56x = 24,786,807,498,441.21 - Step 5: Solve for x
x = 24,786,807,498,441.21/4,825,631.56 - Step 6: Final answer
x = 5,136,489.84
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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.