Finding the Fourth Proportional to 18,515,252.88, 27,772,971.59 and 7,591,409.31
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Solution
The fourth proportional to 18,515,252.88, 27,772,971.59 and 7,591,409.31 is: 11,387,151.79
Step by Step Solution
- Step 1: Write the proportion equation
18,515,252.88 : 27,772,971.59 = 7,591,409.31 : x - Step 2: Convert to fraction form
18,515,252.88/27,772,971.59 = 7,591,409.31/x - Step 3: Cross multiply
18,515,252.88x = 27,772,971.59 × 7,591,409.31 - Step 4: Simplify right side
18,515,252.88x = 210,835,995,056,734.44 - Step 5: Solve for x
x = 210,835,995,056,734.44/18,515,252.88 - Step 6: Final answer
x = 11,387,151.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.