Finding the Fourth Proportional to 20,164,811.26, 27,819,517.29 and 12,416,416.06
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Solution
The fourth proportional to 20,164,811.26, 27,819,517.29 and 12,416,416.06 is: 17,129,776.06
Step by Step Solution
- Step 1: Write the proportion equation
20,164,811.26 : 27,819,517.29 = 12,416,416.06 : x - Step 2: Convert to fraction form
20,164,811.26/27,819,517.29 = 12,416,416.06/x - Step 3: Cross multiply
20,164,811.26x = 27,819,517.29 × 12,416,416.06 - Step 4: Simplify right side
20,164,811.26x = 345,418,701,261,003.69 - Step 5: Solve for x
x = 345,418,701,261,003.69/20,164,811.26 - Step 6: Final answer
x = 17,129,776.06
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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.