Finding the Fourth Proportional to 1,491,153,824.76, 2,057,336,198.28 and 864,497,165.28
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Solution
The fourth proportional to 1,491,153,824.76, 2,057,336,198.28 and 864,497,165.28 is: 1,192,741,675.55
Step by Step Solution
- Step 1: Write the proportion equation
1,491,153,824.76 : 2,057,336,198.28 = 864,497,165.28 : x - Step 2: Convert to fraction form
1,491,153,824.76/2,057,336,198.28 = 864,497,165.28/x - Step 3: Cross multiply
1,491,153,824.76x = 2,057,336,198.28 × 864,497,165.28 - Step 4: Simplify right side
1,491,153,824.76x = 1,778,561,311,440,992,000 - Step 5: Solve for x
x = 1,778,561,311,440,992,000/1,491,153,824.76 - Step 6: Final answer
x = 1,192,741,675.55
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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.