Finding the Fourth Proportional to 19,971,778.96, 27,560,785.17 and 11,151,366.58
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Solution
The fourth proportional to 19,971,778.96, 27,560,785.17 and 11,151,366.58 is: 15,388,735.24
Step by Step Solution
- Step 1: Write the proportion equation
19,971,778.96 : 27,560,785.17 = 11,151,366.58 : x - Step 2: Convert to fraction form
19,971,778.96/27,560,785.17 = 11,151,366.58/x - Step 3: Cross multiply
19,971,778.96x = 27,560,785.17 × 11,151,366.58 - Step 4: Simplify right side
19,971,778.96x = 307,340,418,663,297.62 - Step 5: Solve for x
x = 307,340,418,663,297.62/19,971,778.96 - Step 6: Final answer
x = 15,388,735.24
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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.