Finding the Fourth Proportional to 21,404,528.78, 29,538,099.90 and 11,614,723.99
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Solution
The fourth proportional to 21,404,528.78, 29,538,099.90 and 11,614,723.99 is: 16,028,237.81
Step by Step Solution
- Step 1: Write the proportion equation
21,404,528.78 : 29,538,099.90 = 11,614,723.99 : x - Step 2: Convert to fraction form
21,404,528.78/29,538,099.90 = 11,614,723.99/x - Step 3: Cross multiply
21,404,528.78x = 29,538,099.90 × 11,614,723.99 - Step 4: Simplify right side
21,404,528.78x = 343,076,877,453,701.38 - Step 5: Solve for x
x = 343,076,877,453,701.38/21,404,528.78 - Step 6: Final answer
x = 16,028,237.81
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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.