Finding the Fourth Proportional to 19,888,635.53, 27,446,041.40 and 11,186,814.03
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Solution
The fourth proportional to 19,888,635.53, 27,446,041.40 and 11,186,814.03 is: 15,437,648.33
Step by Step Solution
- Step 1: Write the proportion equation
19,888,635.53 : 27,446,041.40 = 11,186,814.03 : x - Step 2: Convert to fraction form
19,888,635.53/27,446,041.40 = 11,186,814.03/x - Step 3: Cross multiply
19,888,635.53x = 27,446,041.40 × 11,186,814.03 - Step 4: Simplify right side
19,888,635.53x = 307,033,760,945,546.75 - Step 5: Solve for x
x = 307,033,760,945,546.75/19,888,635.53 - Step 6: Final answer
x = 15,437,648.33
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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.