Finding the Fourth Proportional to 10,975,121.60, 16,481,344.80 and 8,138,436.80
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Solution
The fourth proportional to 10,975,121.60, 16,481,344.80 and 8,138,436.80 is: 12,221,494.02
Step by Step Solution
- Step 1: Write the proportion equation
10,975,121.60 : 16,481,344.80 = 8,138,436.80 : x - Step 2: Convert to fraction form
10,975,121.60/16,481,344.80 = 8,138,436.80/x - Step 3: Cross multiply
10,975,121.60x = 16,481,344.80 × 8,138,436.80 - Step 4: Simplify right side
10,975,121.60x = 134,132,383,033,808.64 - Step 5: Solve for x
x = 134,132,383,033,808.64/10,975,121.60 - Step 6: Final answer
x = 12,221,494.02
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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.