Finding the Fourth Proportional to 38,351,369.54, 52,924,540.11 and 20,947,709.95
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Solution
The fourth proportional to 38,351,369.54, 52,924,540.11 and 20,947,709.95 is: 28,907,648.64
Step by Step Solution
- Step 1: Write the proportion equation
38,351,369.54 : 52,924,540.11 = 20,947,709.95 : x - Step 2: Convert to fraction form
38,351,369.54/52,924,540.11 = 20,947,709.95/x - Step 3: Cross multiply
38,351,369.54x = 52,924,540.11 × 20,947,709.95 - Step 4: Simplify right side
38,351,369.54x = 1,108,647,915,461,421 - Step 5: Solve for x
x = 1,108,647,915,461,421/38,351,369.54 - Step 6: Final answer
x = 28,907,648.64
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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.