Finding the Fourth Proportional to 7,926,491.68, 10,938,622.80 and 4,304,845.60
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Solution
The fourth proportional to 7,926,491.68, 10,938,622.80 and 4,304,845.60 is: 5,940,721.84
Step by Step Solution
- Step 1: Write the proportion equation
7,926,491.68 : 10,938,622.80 = 4,304,845.60 : x - Step 2: Convert to fraction form
7,926,491.68/10,938,622.80 = 4,304,845.60/x - Step 3: Cross multiply
7,926,491.68x = 10,938,622.80 × 4,304,845.60 - Step 4: Simplify right side
7,926,491.68x = 47,089,082,230,639.68 - Step 5: Solve for x
x = 47,089,082,230,639.68/7,926,491.68 - Step 6: Final answer
x = 5,940,721.84
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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.