Finding the Fourth Proportional to 18,278,048.42, 25,235,175.93 and 11,762,999.99
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Solution
The fourth proportional to 18,278,048.42, 25,235,175.93 and 11,762,999.99 is: 16,240,321.03
Step by Step Solution
- Step 1: Write the proportion equation
18,278,048.42 : 25,235,175.93 = 11,762,999.99 : x - Step 2: Convert to fraction form
18,278,048.42/25,235,175.93 = 11,762,999.99/x - Step 3: Cross multiply
18,278,048.42x = 25,235,175.93 × 11,762,999.99 - Step 4: Simplify right side
18,278,048.42x = 296,841,374,202,749.88 - Step 5: Solve for x
x = 296,841,374,202,749.88/18,278,048.42 - Step 6: Final answer
x = 16,240,321.03
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1.5x scale
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.