Finding the Fourth Proportional to 13,446,687.36, 18,555,880.32 and 7,941,843.84
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Solution
The fourth proportional to 13,446,687.36, 18,555,880.32 and 7,941,843.84 is: 10,959,420.70
Step by Step Solution
- Step 1: Write the proportion equation
13,446,687.36 : 18,555,880.32 = 7,941,843.84 : x - Step 2: Convert to fraction form
13,446,687.36/18,555,880.32 = 7,941,843.84/x - Step 3: Cross multiply
13,446,687.36x = 18,555,880.32 × 7,941,843.84 - Step 4: Simplify right side
13,446,687.36x = 147,367,903,815,169.22 - Step 5: Solve for x
x = 147,367,903,815,169.22/13,446,687.36 - Step 6: Final answer
x = 10,959,420.70
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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.