Finding the Fourth Proportional to 3,934,841,039.60, 5,430,067,451.57 and 2,150,693,459.19
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Solution
The fourth proportional to 3,934,841,039.60, 5,430,067,451.57 and 2,150,693,459.19 is: 2,967,949,768.12
Step by Step Solution
- Step 1: Write the proportion equation
3,934,841,039.60 : 5,430,067,451.57 = 2,150,693,459.19 : x - Step 2: Convert to fraction form
3,934,841,039.60/5,430,067,451.57 = 2,150,693,459.19/x - Step 3: Cross multiply
3,934,841,039.60x = 5,430,067,451.57 × 2,150,693,459.19 - Step 4: Simplify right side
3,934,841,039.60x = 11,678,410,551,057,487,872 - Step 5: Solve for x
x = 11,678,410,551,057,487,872/3,934,841,039.60 - Step 6: Final answer
x = 2,967,949,768.12
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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.