Finding the Fourth Proportional to 6,865,521.21, 9,474,862.14 and 3,809,735.46
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Solution
The fourth proportional to 6,865,521.21, 9,474,862.14 and 3,809,735.46 is: 5,257,680.69
Step by Step Solution
- Step 1: Write the proportion equation
6,865,521.21 : 9,474,862.14 = 3,809,735.46 : x - Step 2: Convert to fraction form
6,865,521.21/9,474,862.14 = 3,809,735.46/x - Step 3: Cross multiply
6,865,521.21x = 9,474,862.14 × 3,809,735.46 - Step 4: Simplify right side
6,865,521.21x = 36,096,718,273,369.48 - Step 5: Solve for x
x = 36,096,718,273,369.48/6,865,521.21 - Step 6: Final answer
x = 5,257,680.69
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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.