Finding the Fourth Proportional to 12,419,812.71, 18,628,651.84 and 7,560,858.06
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Solution
The fourth proportional to 12,419,812.71, 18,628,651.84 and 7,560,858.06 is: 11,340,637.39
Step by Step Solution
- Step 1: Write the proportion equation
12,419,812.71 : 18,628,651.84 = 7,560,858.06 : x - Step 2: Convert to fraction form
12,419,812.71/18,628,651.84 = 7,560,858.06/x - Step 3: Cross multiply
12,419,812.71x = 18,628,651.84 × 7,560,858.06 - Step 4: Simplify right side
12,419,812.71x = 140,848,592,411,397.81 - Step 5: Solve for x
x = 140,848,592,411,397.81/12,419,812.71 - Step 6: Final answer
x = 11,340,637.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.