Finding the Fourth Proportional to 18,917,817.61, 26,106,469.39 and 10,660,532.31
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Solution
The fourth proportional to 18,917,817.61, 26,106,469.39 and 10,660,532.31 is: 14,711,467.58
Step by Step Solution
- Step 1: Write the proportion equation
18,917,817.61 : 26,106,469.39 = 10,660,532.31 : x - Step 2: Convert to fraction form
18,917,817.61/26,106,469.39 = 10,660,532.31/x - Step 3: Cross multiply
18,917,817.61x = 26,106,469.39 × 10,660,532.31 - Step 4: Simplify right side
18,917,817.61x = 278,308,860,520,477.03 - Step 5: Solve for x
x = 278,308,860,520,477.03/18,917,817.61 - Step 6: Final answer
x = 14,711,467.58
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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.