Finding the Fourth Proportional to 18,979,565.25, 28,463,459.70 and 6,847,451.55
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Solution
The fourth proportional to 18,979,565.25, 28,463,459.70 and 6,847,451.55 is: 10,269,052.99
Step by Step Solution
- Step 1: Write the proportion equation
18,979,565.25 : 28,463,459.70 = 6,847,451.55 : x - Step 2: Convert to fraction form
18,979,565.25/28,463,459.70 = 6,847,451.55/x - Step 3: Cross multiply
18,979,565.25x = 28,463,459.70 × 6,847,451.55 - Step 4: Simplify right side
18,979,565.25x = 194,902,161,241,127.53 - Step 5: Solve for x
x = 194,902,161,241,127.53/18,979,565.25 - Step 6: Final answer
x = 10,269,052.99
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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.