Finding the Fourth Proportional to 18,979,618.84, 28,463,539.92 and 6,847,505.08
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Solution
The fourth proportional to 18,979,618.84, 28,463,539.92 and 6,847,505.08 is: 10,269,133.21
Step by Step Solution
- Step 1: Write the proportion equation
18,979,618.84 : 28,463,539.92 = 6,847,505.08 : x - Step 2: Convert to fraction form
18,979,618.84/28,463,539.92 = 6,847,505.08/x - Step 3: Cross multiply
18,979,618.84x = 28,463,539.92 × 6,847,505.08 - Step 4: Simplify right side
18,979,618.84x = 194,904,234,196,982.81 - Step 5: Solve for x
x = 194,904,234,196,982.81/18,979,618.84 - Step 6: Final answer
x = 10,269,133.21
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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.