Finding the Fourth Proportional to 20,185,276.84, 27,851,523.78 and 11,598,913.96
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Solution
The fourth proportional to 20,185,276.84, 27,851,523.78 and 11,598,913.96 is: 16,004,111.84
Step by Step Solution
- Step 1: Write the proportion equation
20,185,276.84 : 27,851,523.78 = 11,598,913.96 : x - Step 2: Convert to fraction form
20,185,276.84/27,851,523.78 = 11,598,913.96/x - Step 3: Cross multiply
20,185,276.84x = 27,851,523.78 × 11,598,913.96 - Step 4: Simplify right side
20,185,276.84x = 323,047,427,979,114 - Step 5: Solve for x
x = 323,047,427,979,114/20,185,276.84 - Step 6: Final answer
x = 16,004,111.84
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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.