Finding the Fourth Proportional to 18,386,352.60, 27,579,528.90 and 15,552,000.60
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Solution
The fourth proportional to 18,386,352.60, 27,579,528.90 and 15,552,000.60 is: 23,328,000.90
Step by Step Solution
- Step 1: Write the proportion equation
18,386,352.60 : 27,579,528.90 = 15,552,000.60 : x - Step 2: Convert to fraction form
18,386,352.60/27,579,528.90 = 15,552,000.60/x - Step 3: Cross multiply
18,386,352.60x = 27,579,528.90 × 15,552,000.60 - Step 4: Simplify right side
18,386,352.60x = 428,916,850,000,517.31 - Step 5: Solve for x
x = 428,916,850,000,517.31/18,386,352.60 - Step 6: Final answer
x = 23,328,000.90
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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.