Finding the Fourth Proportional to 1,073,088,381.20, 1,609,632,571.80 and 726,163,696.40
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Solution
The fourth proportional to 1,073,088,381.20, 1,609,632,571.80 and 726,163,696.40 is: 1,089,245,544.60
Step by Step Solution
- Step 1: Write the proportion equation
1,073,088,381.20 : 1,609,632,571.80 = 726,163,696.40 : x - Step 2: Convert to fraction form
1,073,088,381.20/1,609,632,571.80 = 726,163,696.40/x - Step 3: Cross multiply
1,073,088,381.20x = 1,609,632,571.80 × 726,163,696.40 - Step 4: Simplify right side
1,073,088,381.20x = 1,168,856,738,184,126,208 - Step 5: Solve for x
x = 1,168,856,738,184,126,208/1,073,088,381.20 - Step 6: Final answer
x = 1,089,245,544.60
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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.