Finding the Fourth Proportional to 7,181,861.98, 10,771,997.18 and 2,570,664.05
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Solution
The fourth proportional to 7,181,861.98, 10,771,997.18 and 2,570,664.05 is: 3,855,711.24
Step by Step Solution
- Step 1: Write the proportion equation
7,181,861.98 : 10,771,997.18 = 2,570,664.05 : x - Step 2: Convert to fraction form
7,181,861.98/10,771,997.18 = 2,570,664.05/x - Step 3: Cross multiply
7,181,861.98x = 10,771,997.18 × 2,570,664.05 - Step 4: Simplify right side
7,181,861.98x = 27,691,185,930,684.03 - Step 5: Solve for x
x = 27,691,185,930,684.03/7,181,861.98 - Step 6: Final answer
x = 3,855,711.24
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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.