Finding the Fourth Proportional to 3,889,997,216.33, 5,368,197,891.68 and 2,105,850,611.63
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Solution
The fourth proportional to 3,889,997,216.33, 5,368,197,891.68 and 2,105,850,611.63 is: 2,906,074,782.28
Step by Step Solution
- Step 1: Write the proportion equation
3,889,997,216.33 : 5,368,197,891.68 = 2,105,850,611.63 : x - Step 2: Convert to fraction form
3,889,997,216.33/5,368,197,891.68 = 2,105,850,611.63/x - Step 3: Cross multiply
3,889,997,216.33x = 5,368,197,891.68 × 2,105,850,611.63 - Step 4: Simplify right side
3,889,997,216.33x = 11,304,622,813,507,833,856 - Step 5: Solve for x
x = 11,304,622,813,507,833,856/3,889,997,216.33 - Step 6: Final answer
x = 2,906,074,782.28
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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.