Finding the Fourth Proportional to 18,713,546.27, 27,953,622.42 and 13,865,321.96
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Solution
The fourth proportional to 18,713,546.27, 27,953,622.42 and 13,865,321.96 is: 20,711,519.30
Step by Step Solution
- Step 1: Write the proportion equation
18,713,546.27 : 27,953,622.42 = 13,865,321.96 : x - Step 2: Convert to fraction form
18,713,546.27/27,953,622.42 = 13,865,321.96/x - Step 3: Cross multiply
18,713,546.27x = 27,953,622.42 × 13,865,321.96 - Step 4: Simplify right side
18,713,546.27x = 387,585,974,801,574.38 - Step 5: Solve for x
x = 387,585,974,801,574.38/18,713,546.27 - Step 6: Final answer
x = 20,711,519.30
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.