Finding the Fourth Proportional to 5,107,496.29, 7,048,399.40 and 2,815,738.99
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Solution
The fourth proportional to 5,107,496.29, 7,048,399.40 and 2,815,738.99 is: 3,885,749.86
Step by Step Solution
- Step 1: Write the proportion equation
5,107,496.29 : 7,048,399.40 = 2,815,738.99 : x - Step 2: Convert to fraction form
5,107,496.29/7,048,399.40 = 2,815,738.99/x - Step 3: Cross multiply
5,107,496.29x = 7,048,399.40 × 2,815,738.99 - Step 4: Simplify right side
5,107,496.29x = 19,846,453,007,672.61 - Step 5: Solve for x
x = 19,846,453,007,672.61/5,107,496.29 - Step 6: Final answer
x = 3,885,749.86
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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.