Finding the Fourth Proportional to 10,652,706.40, 15,969,728.40 and 6,394,568.80
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Solution
The fourth proportional to 10,652,706.40, 15,969,728.40 and 6,394,568.80 is: 9,586,251.90
Step by Step Solution
- Step 1: Write the proportion equation
10,652,706.40 : 15,969,728.40 = 6,394,568.80 : x - Step 2: Convert to fraction form
10,652,706.40/15,969,728.40 = 6,394,568.80/x - Step 3: Cross multiply
10,652,706.40x = 15,969,728.40 × 6,394,568.80 - Step 4: Simplify right side
10,652,706.40x = 102,119,526,971,113.92 - Step 5: Solve for x
x = 102,119,526,971,113.92/10,652,706.40 - Step 6: Final answer
x = 9,586,251.90
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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.