Finding the Fourth Proportional to 19,961,213.20, 27,546,638.97 and 11,020,611.40
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Solution
The fourth proportional to 19,961,213.20, 27,546,638.97 and 11,020,611.40 is: 15,208,534.69
Step by Step Solution
- Step 1: Write the proportion equation
19,961,213.20 : 27,546,638.97 = 11,020,611.40 : x - Step 2: Convert to fraction form
19,961,213.20/27,546,638.97 = 11,020,611.40/x - Step 3: Cross multiply
19,961,213.20x = 27,546,638.97 × 11,020,611.40 - Step 4: Simplify right side
19,961,213.20x = 303,580,803,464,466.25 - Step 5: Solve for x
x = 303,580,803,464,466.25/19,961,213.20 - Step 6: Final answer
x = 15,208,534.69
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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.