Finding the Fourth Proportional to 18,777,634.24, 28,166,450.55 and 10,253,320.60
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Solution
The fourth proportional to 18,777,634.24, 28,166,450.55 and 10,253,320.60 is: 15,379,980.46
Step by Step Solution
- Step 1: Write the proportion equation
18,777,634.24 : 28,166,450.55 = 10,253,320.60 : x - Step 2: Convert to fraction form
18,777,634.24/28,166,450.55 = 10,253,320.60/x - Step 3: Cross multiply
18,777,634.24x = 28,166,450.55 × 10,253,320.60 - Step 4: Simplify right side
18,777,634.24x = 288,799,647,653,196.31 - Step 5: Solve for x
x = 288,799,647,653,196.31/18,777,634.24 - Step 6: Final answer
x = 15,379,980.46
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1.5x scale
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.