Finding the Fourth Proportional to 2,215,858,918.44, 3,057,957,794.75 and 1,212,253,203.78
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Solution
The fourth proportional to 2,215,858,918.44, 3,057,957,794.75 and 1,212,253,203.78 is: 1,672,949,077.61
Step by Step Solution
- Step 1: Write the proportion equation
2,215,858,918.44 : 3,057,957,794.75 = 1,212,253,203.78 : x - Step 2: Convert to fraction form
2,215,858,918.44/3,057,957,794.75 = 1,212,253,203.78/x - Step 3: Cross multiply
2,215,858,918.44x = 3,057,957,794.75 × 1,212,253,203.78 - Step 4: Simplify right side
2,215,858,918.44x = 3,707,019,133,709,710,848 - Step 5: Solve for x
x = 3,707,019,133,709,710,848/2,215,858,918.44 - Step 6: Final answer
x = 1,672,949,077.61
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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.