Finding the Fourth Proportional to 21,581,394.84, 29,782,534.05 and 11,791,838.12
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Solution
The fourth proportional to 21,581,394.84, 29,782,534.05 and 11,791,838.12 is: 16,272,850.89
Step by Step Solution
- Step 1: Write the proportion equation
21,581,394.84 : 29,782,534.05 = 11,791,838.12 : x - Step 2: Convert to fraction form
21,581,394.84/29,782,534.05 = 11,791,838.12/x - Step 3: Cross multiply
21,581,394.84x = 29,782,534.05 × 11,791,838.12 - Step 4: Simplify right side
21,581,394.84x = 351,190,820,172,075.31 - Step 5: Solve for x
x = 351,190,820,172,075.31/21,581,394.84 - Step 6: Final answer
x = 16,272,850.89
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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.