Finding the Fourth Proportional to 5,531,154,857.68, 7,632,532,274.52 and 3,119,704,463.20
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Solution
The fourth proportional to 5,531,154,857.68, 7,632,532,274.52 and 3,119,704,463.20 is: 4,304,931,902.11
Step by Step Solution
- Step 1: Write the proportion equation
5,531,154,857.68 : 7,632,532,274.52 = 3,119,704,463.20 : x - Step 2: Convert to fraction form
5,531,154,857.68/7,632,532,274.52 = 3,119,704,463.20/x - Step 3: Cross multiply
5,531,154,857.68x = 7,632,532,274.52 × 3,119,704,463.20 - Step 4: Simplify right side
5,531,154,857.68x = 23,811,245,002,338,091,008 - Step 5: Solve for x
x = 23,811,245,002,338,091,008/5,531,154,857.68 - Step 6: Final answer
x = 4,304,931,902.11
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.