Finding the Fourth Proportional to 18,131,277.06, 27,197,981.82 and 5,176,431.90
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Solution
The fourth proportional to 18,131,277.06, 27,197,981.82 and 5,176,431.90 is: 7,764,952.26
Step by Step Solution
- Step 1: Write the proportion equation
18,131,277.06 : 27,197,981.82 = 5,176,431.90 : x - Step 2: Convert to fraction form
18,131,277.06/27,197,981.82 = 5,176,431.90/x - Step 3: Cross multiply
18,131,277.06x = 27,197,981.82 × 5,176,431.90 - Step 4: Simplify right side
18,131,277.06x = 140,788,500,708,668.06 - Step 5: Solve for x
x = 140,788,500,708,668.06/18,131,277.06 - Step 6: Final answer
x = 7,764,952.26
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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.