Finding the Fourth Proportional to 5,259,863,985.84, 7,258,522,584.78 and 2,848,526,892.18
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Solution
The fourth proportional to 5,259,863,985.84, 7,258,522,584.78 and 2,848,526,892.18 is: 3,930,918,524.87
Step by Step Solution
- Step 1: Write the proportion equation
5,259,863,985.84 : 7,258,522,584.78 = 2,848,526,892.18 : x - Step 2: Convert to fraction form
5,259,863,985.84/7,258,522,584.78 = 2,848,526,892.18/x - Step 3: Cross multiply
5,259,863,985.84x = 7,258,522,584.78 × 2,848,526,892.18 - Step 4: Simplify right side
5,259,863,985.84x = 20,676,096,780,241,711,104 - Step 5: Solve for x
x = 20,676,096,780,241,711,104/5,259,863,985.84 - Step 6: Final answer
x = 3,930,918,524.87
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1.5x scale
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.