Finding the Fourth Proportional to 20,440,627.44, 28,200,942.36 and 13,102,506
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Solution
The fourth proportional to 20,440,627.44, 28,200,942.36 and 13,102,506 is: 18,076,892.09
Step by Step Solution
- Step 1: Write the proportion equation
20,440,627.44 : 28,200,942.36 = 13,102,506 : x - Step 2: Convert to fraction form
20,440,627.44/28,200,942.36 = 13,102,506/x - Step 3: Cross multiply
20,440,627.44x = 28,200,942.36 × 13,102,506 - Step 4: Simplify right side
20,440,627.44x = 369,503,016,477,554.12 - Step 5: Solve for x
x = 369,503,016,477,554.12/20,440,627.44 - Step 6: Final answer
x = 18,076,892.09
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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.