Finding the Fourth Proportional to 13,471,611.17, 18,590,830.86 and 7,276,657.85
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Solution
The fourth proportional to 13,471,611.17, 18,590,830.86 and 7,276,657.85 is: 10,041,791.85
Step by Step Solution
- Step 1: Write the proportion equation
13,471,611.17 : 18,590,830.86 = 7,276,657.85 : x - Step 2: Convert to fraction form
13,471,611.17/18,590,830.86 = 7,276,657.85/x - Step 3: Cross multiply
13,471,611.17x = 18,590,830.86 × 7,276,657.85 - Step 4: Simplify right side
13,471,611.17x = 135,279,115,315,441.23 - Step 5: Solve for x
x = 135,279,115,315,441.23/13,471,611.17 - Step 6: Final answer
x = 10,041,791.85
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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.