Finding the Fourth Proportional to 20,076,495.15, 27,705,729.36 and 10,909,137.90
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Solution
The fourth proportional to 20,076,495.15, 27,705,729.36 and 10,909,137.90 is: 15,054,700.53
Step by Step Solution
- Step 1: Write the proportion equation
20,076,495.15 : 27,705,729.36 = 10,909,137.90 : x - Step 2: Convert to fraction form
20,076,495.15/27,705,729.36 = 10,909,137.90/x - Step 3: Cross multiply
20,076,495.15x = 27,705,729.36 × 10,909,137.90 - Step 4: Simplify right side
20,076,495.15x = 302,245,622,208,318.75 - Step 5: Solve for x
x = 302,245,622,208,318.75/20,076,495.15 - Step 6: Final answer
x = 15,054,700.53
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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.