Finding the Fourth Proportional to 18,821,864.19, 25,959,529.32 and 13,614,406.70
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Solution
The fourth proportional to 18,821,864.19, 25,959,529.32 and 13,614,406.70 is: 18,777,289.33
Step by Step Solution
- Step 1: Write the proportion equation
18,821,864.19 : 25,959,529.32 = 13,614,406.70 : x - Step 2: Convert to fraction form
18,821,864.19/25,959,529.32 = 13,614,406.70/x - Step 3: Cross multiply
18,821,864.19x = 25,959,529.32 × 13,614,406.70 - Step 4: Simplify right side
18,821,864.19x = 353,423,589,722,202.81 - Step 5: Solve for x
x = 353,423,589,722,202.81/18,821,864.19 - Step 6: Final answer
x = 18,777,289.33
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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.