Finding the Fourth Proportional to 18,222,938.40, 27,334,731.60 and 5,443,600.80
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Solution
The fourth proportional to 18,222,938.40, 27,334,731.60 and 5,443,600.80 is: 8,165,497.99
Step by Step Solution
- Step 1: Write the proportion equation
18,222,938.40 : 27,334,731.60 = 5,443,600.80 : x - Step 2: Convert to fraction form
18,222,938.40/27,334,731.60 = 5,443,600.80/x - Step 3: Cross multiply
18,222,938.40x = 27,334,731.60 × 5,443,600.80 - Step 4: Simplify right side
18,222,938.40x = 148,799,366,805,545.28 - Step 5: Solve for x
x = 148,799,366,805,545.28/18,222,938.40 - Step 6: Final answer
x = 8,165,497.99
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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.