Finding the Fourth Proportional to 5,920,968.56, 8,172,467.55 and 3,861,120.74
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Solution
The fourth proportional to 5,920,968.56, 8,172,467.55 and 3,861,120.74 is: 5,329,344.96
Step by Step Solution
- Step 1: Write the proportion equation
5,920,968.56 : 8,172,467.55 = 3,861,120.74 : x - Step 2: Convert to fraction form
5,920,968.56/8,172,467.55 = 3,861,120.74/x - Step 3: Cross multiply
5,920,968.56x = 8,172,467.55 × 3,861,120.74 - Step 4: Simplify right side
5,920,968.56x = 31,554,883,954,281.99 - Step 5: Solve for x
x = 31,554,883,954,281.99/5,920,968.56 - Step 6: Final answer
x = 5,329,344.96
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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.