Finding the Fourth Proportional to 10,381,528.07, 14,222,455.49 and 9,993,389.75
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Solution
The fourth proportional to 10,381,528.07, 14,222,455.49 and 9,993,389.75 is: 13,690,714.88
Step by Step Solution
- Step 1: Write the proportion equation
10,381,528.07 : 14,222,455.49 = 9,993,389.75 : x - Step 2: Convert to fraction form
10,381,528.07/14,222,455.49 = 9,993,389.75/x - Step 3: Cross multiply
10,381,528.07x = 14,222,455.49 × 9,993,389.75 - Step 4: Simplify right side
10,381,528.07x = 142,130,540,792,517.97 - Step 5: Solve for x
x = 142,130,540,792,517.97/10,381,528.07 - Step 6: Final answer
x = 13,690,714.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.