Finding the Fourth Proportional to 21,283,764.20, 29,371,593.46 and 11,494,207.44
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Solution
The fourth proportional to 21,283,764.20, 29,371,593.46 and 11,494,207.44 is: 15,862,005.65
Step by Step Solution
- Step 1: Write the proportion equation
21,283,764.20 : 29,371,593.46 = 11,494,207.44 : x - Step 2: Convert to fraction form
21,283,764.20/29,371,593.46 = 11,494,207.44/x - Step 3: Cross multiply
21,283,764.20x = 29,371,593.46 × 11,494,207.44 - Step 4: Simplify right side
21,283,764.20x = 337,603,188,015,116.25 - Step 5: Solve for x
x = 337,603,188,015,116.25/21,283,764.20 - Step 6: Final answer
x = 15,862,005.65
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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.