Finding the Fourth Proportional to 3,929,906.44, 5,423,269.53 and 2,187,538.03
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Solution
The fourth proportional to 3,929,906.44, 5,423,269.53 and 2,187,538.03 is: 3,018,801.73
Step by Step Solution
- Step 1: Write the proportion equation
3,929,906.44 : 5,423,269.53 = 2,187,538.03 : x - Step 2: Convert to fraction form
3,929,906.44/5,423,269.53 = 2,187,538.03/x - Step 3: Cross multiply
3,929,906.44x = 5,423,269.53 × 2,187,538.03 - Step 4: Simplify right side
3,929,906.44x = 11,863,608,343,815.22 - Step 5: Solve for x
x = 11,863,608,343,815.22/3,929,906.44 - Step 6: Final answer
x = 3,018,801.73
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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.