Finding the Fourth Proportional to 3,946,642.68, 5,445,973.26 and 2,227,431.18
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Solution
The fourth proportional to 3,946,642.68, 5,445,973.26 and 2,227,431.18 is: 3,073,632.86
Step by Step Solution
- Step 1: Write the proportion equation
3,946,642.68 : 5,445,973.26 = 2,227,431.18 : x - Step 2: Convert to fraction form
3,946,642.68/5,445,973.26 = 2,227,431.18/x - Step 3: Cross multiply
3,946,642.68x = 5,445,973.26 × 2,227,431.18 - Step 4: Simplify right side
3,946,642.68x = 12,130,530,644,770.25 - Step 5: Solve for x
x = 12,130,530,644,770.25/3,946,642.68 - Step 6: Final answer
x = 3,073,632.86
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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.