Finding the Fourth Proportional to 5,162,787.82, 7,738,497.05 and 2,128,489.35
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Solution
The fourth proportional to 5,162,787.82, 7,738,497.05 and 2,128,489.35 is: 3,190,390.37
Step by Step Solution
- Step 1: Write the proportion equation
5,162,787.82 : 7,738,497.05 = 2,128,489.35 : x - Step 2: Convert to fraction form
5,162,787.82/7,738,497.05 = 2,128,489.35/x - Step 3: Cross multiply
5,162,787.82x = 7,738,497.05 × 2,128,489.35 - Step 4: Simplify right side
5,162,787.82x = 16,471,308,528,242.36 - Step 5: Solve for x
x = 16,471,308,528,242.36/5,162,787.82 - Step 6: Final answer
x = 3,190,390.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.