Finding the Fourth Proportional to 13,512,194.85, 18,646,846.88 and 7,317,252.26
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Solution
The fourth proportional to 13,512,194.85, 18,646,846.88 and 7,317,252.26 is: 10,097,817.85
Step by Step Solution
- Step 1: Write the proportion equation
13,512,194.85 : 18,646,846.88 = 7,317,252.26 : x - Step 2: Convert to fraction form
13,512,194.85/18,646,846.88 = 7,317,252.26/x - Step 3: Cross multiply
13,512,194.85x = 18,646,846.88 × 7,317,252.26 - Step 4: Simplify right side
13,512,194.85x = 136,443,682,344,733.45 - Step 5: Solve for x
x = 136,443,682,344,733.45/13,512,194.85 - Step 6: Final answer
x = 10,097,817.85
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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.