Finding the Fourth Proportional to 6,388,348,513.80, 9,582,522,770.70 and 5,299,957,345.80
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Solution
The fourth proportional to 6,388,348,513.80, 9,582,522,770.70 and 5,299,957,345.80 is: 7,949,936,018.70
Step by Step Solution
- Step 1: Write the proportion equation
6,388,348,513.80 : 9,582,522,770.70 = 5,299,957,345.80 : x - Step 2: Convert to fraction form
6,388,348,513.80/9,582,522,770.70 = 5,299,957,345.80/x - Step 3: Cross multiply
6,388,348,513.80x = 9,582,522,770.70 × 5,299,957,345.80 - Step 4: Simplify right side
6,388,348,513.80x = 50,786,961,949,867,237,376 - Step 5: Solve for x
x = 50,786,961,949,867,237,376/6,388,348,513.80 - Step 6: Final answer
x = 7,949,936,018.70
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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.