Finding the Fourth Proportional to 5,214,465,055.70, 7,821,697,583.55 and 2,459,474,911.70
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Solution
The fourth proportional to 5,214,465,055.70, 7,821,697,583.55 and 2,459,474,911.70 is: 3,689,212,367.55
Step by Step Solution
- Step 1: Write the proportion equation
5,214,465,055.70 : 7,821,697,583.55 = 2,459,474,911.70 : x - Step 2: Convert to fraction form
5,214,465,055.70/7,821,697,583.55 = 2,459,474,911.70/x - Step 3: Cross multiply
5,214,465,055.70x = 7,821,697,583.55 × 2,459,474,911.70 - Step 4: Simplify right side
5,214,465,055.70x = 19,237,268,973,645,737,984 - Step 5: Solve for x
x = 19,237,268,973,645,737,984/5,214,465,055.70 - Step 6: Final answer
x = 3,689,212,367.55
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Double scale
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Similar ratio
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1.5x scale
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.