Finding the Fourth Proportional to 13,512,194.60, 18,646,846.53 and 7,317,252.01
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Solution
The fourth proportional to 13,512,194.60, 18,646,846.53 and 7,317,252.01 is: 10,097,817.50
Step by Step Solution
- Step 1: Write the proportion equation
13,512,194.60 : 18,646,846.53 = 7,317,252.01 : x - Step 2: Convert to fraction form
13,512,194.60/18,646,846.53 = 7,317,252.01/x - Step 3: Cross multiply
13,512,194.60x = 18,646,846.53 × 7,317,252.01 - Step 4: Simplify right side
13,512,194.60x = 136,443,675,158,569.80 - Step 5: Solve for x
x = 136,443,675,158,569.80/13,512,194.60 - Step 6: Final answer
x = 10,097,817.50
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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.