Finding the Fourth Proportional to 3,885,392,772.78, 5,361,858,070.32 and 2,101,246,187.02
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Solution
The fourth proportional to 3,885,392,772.78, 5,361,858,070.32 and 2,101,246,187.02 is: 2,899,728,414.73
Step by Step Solution
- Step 1: Write the proportion equation
3,885,392,772.78 : 5,361,858,070.32 = 2,101,246,187.02 : x - Step 2: Convert to fraction form
3,885,392,772.78/5,361,858,070.32 = 2,101,246,187.02/x - Step 3: Cross multiply
3,885,392,772.78x = 5,361,858,070.32 × 2,101,246,187.02 - Step 4: Simplify right side
3,885,392,772.78x = 11,266,583,825,602,314,240 - Step 5: Solve for x
x = 11,266,583,825,602,314,240/3,885,392,772.78 - Step 6: Final answer
x = 2,899,728,414.73
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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.