Finding the Fourth Proportional to 5,695,880.50, 7,860,670.07 and 3,215,521.05
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Solution
The fourth proportional to 5,695,880.50, 7,860,670.07 and 3,215,521.05 is: 4,437,619.45
Step by Step Solution
- Step 1: Write the proportion equation
5,695,880.50 : 7,860,670.07 = 3,215,521.05 : x - Step 2: Convert to fraction form
5,695,880.50/7,860,670.07 = 3,215,521.05/x - Step 3: Cross multiply
5,695,880.50x = 7,860,670.07 × 3,215,521.05 - Step 4: Simplify right side
5,695,880.50x = 25,276,150,109,514.09 - Step 5: Solve for x
x = 25,276,150,109,514.09/5,695,880.50 - Step 6: Final answer
x = 4,437,619.45
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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.