Finding the Fourth Proportional to 21,940,434.76, 30,267,750.74 and 14,207,968.44
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Solution
The fourth proportional to 21,940,434.76, 30,267,750.74 and 14,207,968.44 is: 19,600,488.87
Step by Step Solution
- Step 1: Write the proportion equation
21,940,434.76 : 30,267,750.74 = 14,207,968.44 : x - Step 2: Convert to fraction form
21,940,434.76/30,267,750.74 = 14,207,968.44/x - Step 3: Cross multiply
21,940,434.76x = 30,267,750.74 × 14,207,968.44 - Step 4: Simplify right side
21,940,434.76x = 430,043,247,263,706.62 - Step 5: Solve for x
x = 430,043,247,263,706.62/21,940,434.76 - Step 6: Final answer
x = 19,600,488.87
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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.