Finding the Fourth Proportional to 5,159,928.92, 7,120,706.47 and 2,836,860.96
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Solution
The fourth proportional to 5,159,928.92, 7,120,706.47 and 2,836,860.96 is: 3,914,870.63
Step by Step Solution
- Step 1: Write the proportion equation
5,159,928.92 : 7,120,706.47 = 2,836,860.96 : x - Step 2: Convert to fraction form
5,159,928.92/7,120,706.47 = 2,836,860.96/x - Step 3: Cross multiply
5,159,928.92x = 7,120,706.47 × 2,836,860.96 - Step 4: Simplify right side
5,159,928.92x = 20,200,454,211,972.91 - Step 5: Solve for x
x = 20,200,454,211,972.91/5,159,928.92 - Step 6: Final answer
x = 3,914,870.63
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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.