Finding the Fourth Proportional to 20,257,308.36, 27,955,082.07 and 10,964,876.58
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Solution
The fourth proportional to 20,257,308.36, 27,955,082.07 and 10,964,876.58 is: 15,131,527.80
Step by Step Solution
- Step 1: Write the proportion equation
20,257,308.36 : 27,955,082.07 = 10,964,876.58 : x - Step 2: Convert to fraction form
20,257,308.36/27,955,082.07 = 10,964,876.58/x - Step 3: Cross multiply
20,257,308.36x = 27,955,082.07 × 10,964,876.58 - Step 4: Simplify right side
20,257,308.36x = 306,524,024,681,320.94 - Step 5: Solve for x
x = 306,524,024,681,320.94/20,257,308.36 - Step 6: Final answer
x = 15,131,527.80
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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.