Finding the Fourth Proportional to 496,494,477.84, 685,162,376.74 and 287,771,689.09
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Solution
The fourth proportional to 496,494,477.84, 685,162,376.74 and 287,771,689.09 is: 397,124,929.39
Step by Step Solution
- Step 1: Write the proportion equation
496,494,477.84 : 685,162,376.74 = 287,771,689.09 : x - Step 2: Convert to fraction form
496,494,477.84/685,162,376.74 = 287,771,689.09/x - Step 3: Cross multiply
496,494,477.84x = 685,162,376.74 × 287,771,689.09 - Step 4: Simplify right side
496,494,477.84x = 197,170,334,455,388,704 - Step 5: Solve for x
x = 197,170,334,455,388,704/496,494,477.84 - Step 6: Final answer
x = 397,124,929.39
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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.