Finding the Fourth Proportional to 13,446,689.36, 18,555,883.08 and 7,941,845.84
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Solution
The fourth proportional to 13,446,689.36, 18,555,883.08 and 7,941,845.84 is: 10,959,423.46
Step by Step Solution
- Step 1: Write the proportion equation
13,446,689.36 : 18,555,883.08 = 7,941,845.84 : x - Step 2: Convert to fraction form
13,446,689.36/18,555,883.08 = 7,941,845.84/x - Step 3: Cross multiply
13,446,689.36x = 18,555,883.08 × 7,941,845.84 - Step 4: Simplify right side
13,446,689.36x = 147,367,962,846,424.38 - Step 5: Solve for x
x = 147,367,962,846,424.38/13,446,689.36 - Step 6: Final answer
x = 10,959,423.46
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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.