Finding the Fourth Proportional to 496,494,479.84, 685,162,379.50 and 287,771,691.09
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Solution
The fourth proportional to 496,494,479.84, 685,162,379.50 and 287,771,691.09 is: 397,124,932.15
Step by Step Solution
- Step 1: Write the proportion equation
496,494,479.84 : 685,162,379.50 = 287,771,691.09 : x - Step 2: Convert to fraction form
496,494,479.84/685,162,379.50 = 287,771,691.09/x - Step 3: Cross multiply
496,494,479.84x = 685,162,379.50 × 287,771,691.09 - Step 4: Simplify right side
496,494,479.84x = 197,170,336,619,963,328 - Step 5: Solve for x
x = 197,170,336,619,963,328/496,494,479.84 - Step 6: Final answer
x = 397,124,932.15
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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.