Finding the Fourth Proportional to 19,188,397.92, 26,479,991.88 and 10,929,229.68
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Solution
The fourth proportional to 19,188,397.92, 26,479,991.88 and 10,929,229.68 is: 15,082,338.52
Step by Step Solution
- Step 1: Write the proportion equation
19,188,397.92 : 26,479,991.88 = 10,929,229.68 : x - Step 2: Convert to fraction form
19,188,397.92/26,479,991.88 = 10,929,229.68/x - Step 3: Cross multiply
19,188,397.92x = 26,479,991.88 × 10,929,229.68 - Step 4: Simplify right side
19,188,397.92x = 289,405,913,181,055 - Step 5: Solve for x
x = 289,405,913,181,055/19,188,397.92 - Step 6: Final answer
x = 15,082,338.52
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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.