Finding the Fourth Proportional to 18,428,743.14, 25,440,872.61 and 11,461,666.44
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Solution
The fourth proportional to 18,428,743.14, 25,440,872.61 and 11,461,666.44 is: 15,822,825.99
Step by Step Solution
- Step 1: Write the proportion equation
18,428,743.14 : 25,440,872.61 = 11,461,666.44 : x - Step 2: Convert to fraction form
18,428,743.14/25,440,872.61 = 11,461,666.44/x - Step 3: Cross multiply
18,428,743.14x = 25,440,872.61 × 11,461,666.44 - Step 4: Simplify right side
18,428,743.14x = 291,594,795,861,954.38 - Step 5: Solve for x
x = 291,594,795,861,954.38/18,428,743.14 - Step 6: Final answer
x = 15,822,825.99
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1.5x scale
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.