Finding the Fourth Proportional to 2,638,609,932.84, 3,958,401,473.97 and 868,080,299.10
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Solution
The fourth proportional to 2,638,609,932.84, 3,958,401,473.97 and 868,080,299.10 is: 1,302,280,527.60
Step by Step Solution
- Step 1: Write the proportion equation
2,638,609,932.84 : 3,958,401,473.97 = 868,080,299.10 : x - Step 2: Convert to fraction form
2,638,609,932.84/3,958,401,473.97 = 868,080,299.10/x - Step 3: Cross multiply
2,638,609,932.84x = 3,958,401,473.97 × 868,080,299.10 - Step 4: Simplify right side
2,638,609,932.84x = 3,436,210,335,481,758,208 - Step 5: Solve for x
x = 3,436,210,335,481,758,208/2,638,609,932.84 - Step 6: Final answer
x = 1,302,280,527.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.