Finding the Fourth Proportional to 19,421,639.21, 26,797,861.14 and 11,160,105.36
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Solution
The fourth proportional to 19,421,639.21, 26,797,861.14 and 11,160,105.36 is: 15,398,646.35
Step by Step Solution
- Step 1: Write the proportion equation
19,421,639.21 : 26,797,861.14 = 11,160,105.36 : x - Step 2: Convert to fraction form
19,421,639.21/26,797,861.14 = 11,160,105.36/x - Step 3: Cross multiply
19,421,639.21x = 26,797,861.14 × 11,160,105.36 - Step 4: Simplify right side
19,421,639.21x = 299,066,953,745,049.69 - Step 5: Solve for x
x = 299,066,953,745,049.69/19,421,639.21 - Step 6: Final answer
x = 15,398,646.35
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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.