Finding the Fourth Proportional to 467,786,118.29, 645,441,639.53 and 276,952,377.87
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Solution
The fourth proportional to 467,786,118.29, 645,441,639.53 and 276,952,377.87 is: 382,133,179.79
Step by Step Solution
- Step 1: Write the proportion equation
467,786,118.29 : 645,441,639.53 = 276,952,377.87 : x - Step 2: Convert to fraction form
467,786,118.29/645,441,639.53 = 276,952,377.87/x - Step 3: Cross multiply
467,786,118.29x = 645,441,639.53 × 276,952,377.87 - Step 4: Simplify right side
467,786,118.29x = 178,756,596,842,760,128 - Step 5: Solve for x
x = 178,756,596,842,760,128/467,786,118.29 - Step 6: Final answer
x = 382,133,179.79
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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.