Finding the Fourth Proportional to 7,213,122,232,831, 9,954,115,095,425.80 and 3,920,870,062,436.80
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Solution
The fourth proportional to 7,213,122,232,831, 9,954,115,095,425.80 and 3,920,870,062,436.80 is: 5,410,804,172,714.99
Step by Step Solution
- Step 1: Write the proportion equation
7,213,122,232,831 : 9,954,115,095,425.80 = 3,920,870,062,436.80 : x - Step 2: Convert to fraction form
7,213,122,232,831/9,954,115,095,425.80 = 3,920,870,062,436.80/x - Step 3: Cross multiply
7,213,122,232,831x = 9,954,115,095,425.80 × 3,920,870,062,436.80 - Step 4: Simplify right side
7,213,122,232,831x = 39,028,791,875,705,253,880,922,112 - Step 5: Solve for x
x = 39,028,791,875,705,253,880,922,112/7,213,122,232,831 - Step 6: Final answer
x = 5,410,804,172,714.99
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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.