Finding the Fourth Proportional to 17,992,790.08, 26,986,178.40 and 7,892,699.20
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Solution
The fourth proportional to 17,992,790.08, 26,986,178.40 and 7,892,699.20 is: 11,837,729.88
Step by Step Solution
- Step 1: Write the proportion equation
17,992,790.08 : 26,986,178.40 = 7,892,699.20 : x - Step 2: Convert to fraction form
17,992,790.08/26,986,178.40 = 7,892,699.20/x - Step 3: Cross multiply
17,992,790.08x = 26,986,178.40 × 7,892,699.20 - Step 4: Simplify right side
17,992,790.08x = 212,993,788,668,737.28 - Step 5: Solve for x
x = 212,993,788,668,737.28/17,992,790.08 - Step 6: Final answer
x = 11,837,729.88
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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.