Finding the Fourth Proportional to 18,551,036.80, 27,813,517.03 and 8,171,330.68
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Solution
The fourth proportional to 18,551,036.80, 27,813,517.03 and 8,171,330.68 is: 12,251,252.99
Step by Step Solution
- Step 1: Write the proportion equation
18,551,036.80 : 27,813,517.03 = 8,171,330.68 : x - Step 2: Convert to fraction form
18,551,036.80/27,813,517.03 = 8,171,330.68/x - Step 3: Cross multiply
18,551,036.80x = 27,813,517.03 × 8,171,330.68 - Step 4: Simplify right side
18,551,036.80x = 227,273,445,025,941.47 - Step 5: Solve for x
x = 227,273,445,025,941.47/18,551,036.80 - Step 6: Final answer
x = 12,251,252.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.