Finding the Fourth Proportional to 18,763,629.21, 25,880,459.99 and 17,219,876.13
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Solution
The fourth proportional to 18,763,629.21, 25,880,459.99 and 17,219,876.13 is: 23,751,178.95
Step by Step Solution
- Step 1: Write the proportion equation
18,763,629.21 : 25,880,459.99 = 17,219,876.13 : x - Step 2: Convert to fraction form
18,763,629.21/25,880,459.99 = 17,219,876.13/x - Step 3: Cross multiply
18,763,629.21x = 25,880,459.99 × 17,219,876.13 - Step 4: Simplify right side
18,763,629.21x = 445,658,315,129,121.62 - Step 5: Solve for x
x = 445,658,315,129,121.62/18,763,629.21 - Step 6: Final answer
x = 23,751,178.95
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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.