Finding the Fourth Proportional to 18,517,823.40, 27,794,663.10 and 8,939,922.60
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Solution
The fourth proportional to 18,517,823.40, 27,794,663.10 and 8,939,922.60 is: 13,418,539.07
Step by Step Solution
- Step 1: Write the proportion equation
18,517,823.40 : 27,794,663.10 = 8,939,922.60 : x - Step 2: Convert to fraction form
18,517,823.40/27,794,663.10 = 8,939,922.60/x - Step 3: Cross multiply
18,517,823.40x = 27,794,663.10 × 8,939,922.60 - Step 4: Simplify right side
18,517,823.40x = 248,482,136,807,076.06 - Step 5: Solve for x
x = 248,482,136,807,076.06/18,517,823.40 - Step 6: Final answer
x = 13,418,539.07
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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.