Finding the Fourth Proportional to 20,412,908.30, 30,614,525.35 and 5,839,378.47
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Solution
The fourth proportional to 20,412,908.30, 30,614,525.35 and 5,839,378.47 is: 8,757,683.99
Step by Step Solution
- Step 1: Write the proportion equation
20,412,908.30 : 30,614,525.35 = 5,839,378.47 : x - Step 2: Convert to fraction form
20,412,908.30/30,614,525.35 = 5,839,378.47/x - Step 3: Cross multiply
20,412,908.30x = 30,614,525.35 × 5,839,378.47 - Step 4: Simplify right side
20,412,908.30x = 178,769,800,183,460.75 - Step 5: Solve for x
x = 178,769,800,183,460.75/20,412,908.30 - Step 6: Final answer
x = 8,757,683.99
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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.