Finding the Fourth Proportional to 7,816,927.92, 10,787,361.60 and 4,332,491.68
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Solution
The fourth proportional to 7,816,927.92, 10,787,361.60 and 4,332,491.68 is: 5,978,839.11
Step by Step Solution
- Step 1: Write the proportion equation
7,816,927.92 : 10,787,361.60 = 4,332,491.68 : x - Step 2: Convert to fraction form
7,816,927.92/10,787,361.60 = 4,332,491.68/x - Step 3: Cross multiply
7,816,927.92x = 10,787,361.60 × 4,332,491.68 - Step 4: Simplify right side
7,816,927.92x = 46,736,154,381,151.48 - Step 5: Solve for x
x = 46,736,154,381,151.48/7,816,927.92 - Step 6: Final answer
x = 5,978,839.11
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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.