Finding the Fourth Proportional to 5,531,154,853.68, 7,632,532,269 and 3,119,704,459.20
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Solution
The fourth proportional to 5,531,154,853.68, 7,632,532,269 and 3,119,704,459.20 is: 4,304,931,896.59
Step by Step Solution
- Step 1: Write the proportion equation
5,531,154,853.68 : 7,632,532,269 = 3,119,704,459.20 : x - Step 2: Convert to fraction form
5,531,154,853.68/7,632,532,269 = 3,119,704,459.20/x - Step 3: Cross multiply
5,531,154,853.68x = 7,632,532,269 × 3,119,704,459.20 - Step 4: Simplify right side
5,531,154,853.68x = 23,811,244,954,587,193,344 - Step 5: Solve for x
x = 23,811,244,954,587,193,344/5,531,154,853.68 - Step 6: Final answer
x = 4,304,931,896.59
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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.