Finding the Fourth Proportional to 18,837,276.44, 28,250,855.80 and 5,187,173.31
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Solution
The fourth proportional to 18,837,276.44, 28,250,855.80 and 5,187,173.31 is: 7,779,366.92
Step by Step Solution
- Step 1: Write the proportion equation
18,837,276.44 : 28,250,855.80 = 5,187,173.31 : x - Step 2: Convert to fraction form
18,837,276.44/28,250,855.80 = 5,187,173.31/x - Step 3: Cross multiply
18,837,276.44x = 28,250,855.80 × 5,187,173.31 - Step 4: Simplify right side
18,837,276.44x = 146,542,085,177,450.75 - Step 5: Solve for x
x = 146,542,085,177,450.75/18,837,276.44 - Step 6: Final answer
x = 7,779,366.92
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.