Finding the Fourth Proportional to 5,568,485.40, 7,684,721.08 and 3,121,141.68
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Solution
The fourth proportional to 5,568,485.40, 7,684,721.08 and 3,121,141.68 is: 4,307,293.91
Step by Step Solution
- Step 1: Write the proportion equation
5,568,485.40 : 7,684,721.08 = 3,121,141.68 : x - Step 2: Convert to fraction form
5,568,485.40/7,684,721.08 = 3,121,141.68/x - Step 3: Cross multiply
5,568,485.40x = 7,684,721.08 × 3,121,141.68 - Step 4: Simplify right side
5,568,485.40x = 23,985,103,261,962.62 - Step 5: Solve for x
x = 23,985,103,261,962.62/5,568,485.40 - Step 6: Final answer
x = 4,307,293.91
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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.