Finding the Fourth Proportional to 20,112,708.74, 27,756,452.00 and 11,853,119.60
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Solution
The fourth proportional to 20,112,708.74, 27,756,452.00 and 11,853,119.60 is: 16,357,843.66
Step by Step Solution
- Step 1: Write the proportion equation
20,112,708.74 : 27,756,452.00 = 11,853,119.60 : x - Step 2: Convert to fraction form
20,112,708.74/27,756,452.00 = 11,853,119.60/x - Step 3: Cross multiply
20,112,708.74x = 27,756,452.00 × 11,853,119.60 - Step 4: Simplify right side
20,112,708.74x = 329,000,545,029,611.38 - Step 5: Solve for x
x = 329,000,545,029,611.38/20,112,708.74 - Step 6: Final answer
x = 16,357,843.66
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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.