Finding the Fourth Proportional to 361,411,842.75, 498,790,858.68 and 214,734,126.75
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Solution
The fourth proportional to 361,411,842.75, 498,790,858.68 and 214,734,126.75 is: 296,358,355.76
Step by Step Solution
- Step 1: Write the proportion equation
361,411,842.75 : 498,790,858.68 = 214,734,126.75 : x - Step 2: Convert to fraction form
361,411,842.75/498,790,858.68 = 214,734,126.75/x - Step 3: Cross multiply
361,411,842.75x = 498,790,858.68 × 214,734,126.75 - Step 4: Simplify right side
361,411,842.75x = 107,107,419,469,532,464 - Step 5: Solve for x
x = 107,107,419,469,532,464/361,411,842.75 - Step 6: Final answer
x = 296,358,355.76
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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.