Finding the Fourth Proportional to 20,836,495.96, 28,747,168.38 and 13,102,126.84
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Solution
The fourth proportional to 20,836,495.96, 28,747,168.38 and 13,102,126.84 is: 18,076,410.12
Step by Step Solution
- Step 1: Write the proportion equation
20,836,495.96 : 28,747,168.38 = 13,102,126.84 : x - Step 2: Convert to fraction form
20,836,495.96/28,747,168.38 = 13,102,126.84/x - Step 3: Cross multiply
20,836,495.96x = 28,747,168.38 × 13,102,126.84 - Step 4: Simplify right side
20,836,495.96x = 376,649,046,405,597.31 - Step 5: Solve for x
x = 376,649,046,405,597.31/20,836,495.96 - Step 6: Final answer
x = 18,076,410.12
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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.