Finding the Fourth Proportional to 8,412,316.61, 12,613,420.96 and 3,288,643.99
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Solution
The fourth proportional to 8,412,316.61, 12,613,420.96 and 3,288,643.99 is: 4,930,990.23
Step by Step Solution
- Step 1: Write the proportion equation
8,412,316.61 : 12,613,420.96 = 3,288,643.99 : x - Step 2: Convert to fraction form
8,412,316.61/12,613,420.96 = 3,288,643.99/x - Step 3: Cross multiply
8,412,316.61x = 12,613,420.96 × 3,288,643.99 - Step 4: Simplify right side
8,412,316.61x = 41,481,050,993,688.87 - Step 5: Solve for x
x = 41,481,050,993,688.87/8,412,316.61 - Step 6: Final answer
x = 4,930,990.23
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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.