Finding the Fourth Proportional to 5,642,747.96, 7,789,375.14 and 3,809,689.36
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Solution
The fourth proportional to 5,642,747.96, 7,789,375.14 and 3,809,689.36 is: 5,258,980.16
Step by Step Solution
- Step 1: Write the proportion equation
5,642,747.96 : 7,789,375.14 = 3,809,689.36 : x - Step 2: Convert to fraction form
5,642,747.96/7,789,375.14 = 3,809,689.36/x - Step 3: Cross multiply
5,642,747.96x = 7,789,375.14 × 3,809,689.36 - Step 4: Simplify right side
5,642,747.96x = 29,675,099,591,906.51 - Step 5: Solve for x
x = 29,675,099,591,906.51/5,642,747.96 - Step 6: Final answer
x = 5,258,980.16
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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.