Finding the Fourth Proportional to 6,747,431.40, 10,125,812.70 and 4,855,530.60
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Solution
The fourth proportional to 6,747,431.40, 10,125,812.70 and 4,855,530.60 is: 7,286,653.32
Step by Step Solution
- Step 1: Write the proportion equation
6,747,431.40 : 10,125,812.70 = 4,855,530.60 : x - Step 2: Convert to fraction form
6,747,431.40/10,125,812.70 = 4,855,530.60/x - Step 3: Cross multiply
6,747,431.40x = 10,125,812.70 × 4,855,530.60 - Step 4: Simplify right side
6,747,431.40x = 49,166,193,414,718.61 - Step 5: Solve for x
x = 49,166,193,414,718.61/6,747,431.40 - Step 6: Final answer
x = 7,286,653.32
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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.