Finding the Fourth Proportional to 5,291,992.20, 7,939,025.10 and 2,259,352.20
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Solution
The fourth proportional to 5,291,992.20, 7,939,025.10 and 2,259,352.20 is: 3,389,470.95
Step by Step Solution
- Step 1: Write the proportion equation
5,291,992.20 : 7,939,025.10 = 2,259,352.20 : x - Step 2: Convert to fraction form
5,291,992.20/7,939,025.10 = 2,259,352.20/x - Step 3: Cross multiply
5,291,992.20x = 7,939,025.10 × 2,259,352.20 - Step 4: Simplify right side
5,291,992.20x = 17,937,053,825,540.22 - Step 5: Solve for x
x = 17,937,053,825,540.22/5,291,992.20 - Step 6: Final answer
x = 3,389,470.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.