Finding the Fourth Proportional to 3,619,695.19, 4,995,276.92 and 2,129,650.90
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Solution
The fourth proportional to 3,619,695.19, 4,995,276.92 and 2,129,650.90 is: 2,938,975.64
Step by Step Solution
- Step 1: Write the proportion equation
3,619,695.19 : 4,995,276.92 = 2,129,650.90 : x - Step 2: Convert to fraction form
3,619,695.19/4,995,276.92 = 2,129,650.90/x - Step 3: Cross multiply
3,619,695.19x = 4,995,276.92 × 2,129,650.90 - Step 4: Simplify right side
3,619,695.19x = 10,638,196,001,662.05 - Step 5: Solve for x
x = 10,638,196,001,662.05/3,619,695.19 - Step 6: Final answer
x = 2,938,975.64
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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.