Finding the Fourth Proportional to 13,471,611.05, 18,590,830.69 and 7,276,657.73
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Solution
The fourth proportional to 13,471,611.05, 18,590,830.69 and 7,276,657.73 is: 10,041,791.68
Step by Step Solution
- Step 1: Write the proportion equation
13,471,611.05 : 18,590,830.69 = 7,276,657.73 : x - Step 2: Convert to fraction form
13,471,611.05/18,590,830.69 = 7,276,657.73/x - Step 3: Cross multiply
13,471,611.05x = 18,590,830.69 × 7,276,657.73 - Step 4: Simplify right side
13,471,611.05x = 135,279,111,754,555.58 - Step 5: Solve for x
x = 135,279,111,754,555.58/13,471,611.05 - Step 6: Final answer
x = 10,041,791.68
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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.