Finding the Fourth Proportional to 5,775,527.30, 7,970,321.68 and 3,161,987.28
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Solution
The fourth proportional to 5,775,527.30, 7,970,321.68 and 3,161,987.28 is: 4,363,593.90
Step by Step Solution
- Step 1: Write the proportion equation
5,775,527.30 : 7,970,321.68 = 3,161,987.28 : x - Step 2: Convert to fraction form
5,775,527.30/7,970,321.68 = 3,161,987.28/x - Step 3: Cross multiply
5,775,527.30x = 7,970,321.68 × 3,161,987.28 - Step 4: Simplify right side
5,775,527.30x = 25,202,055,714,006.68 - Step 5: Solve for x
x = 25,202,055,714,006.68/5,775,527.30 - Step 6: Final answer
x = 4,363,593.90
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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.