Finding the Fourth Proportional to 8,481,936.87, 11,709,138.36 and 5,221,546.34
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Solution
The fourth proportional to 8,481,936.87, 11,709,138.36 and 5,221,546.34 is: 7,208,236.69
Step by Step Solution
- Step 1: Write the proportion equation
8,481,936.87 : 11,709,138.36 = 5,221,546.34 : x - Step 2: Convert to fraction form
8,481,936.87/11,709,138.36 = 5,221,546.34/x - Step 3: Cross multiply
8,481,936.87x = 11,709,138.36 × 5,221,546.34 - Step 4: Simplify right side
8,481,936.87x = 61,139,808,509,246.70 - Step 5: Solve for x
x = 61,139,808,509,246.70/8,481,936.87 - Step 6: Final answer
x = 7,208,236.69
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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.