Finding the Fourth Proportional to 495,048,486.50, 682,484,272.56 and 394,916,779.58
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Solution
The fourth proportional to 495,048,486.50, 682,484,272.56 and 394,916,779.58 is: 544,440,591.95
Step by Step Solution
- Step 1: Write the proportion equation
495,048,486.50 : 682,484,272.56 = 394,916,779.58 : x - Step 2: Convert to fraction form
495,048,486.50/682,484,272.56 = 394,916,779.58/x - Step 3: Cross multiply
495,048,486.50x = 682,484,272.56 × 394,916,779.58 - Step 4: Simplify right side
495,048,486.50x = 269,524,491,033,394,144 - Step 5: Solve for x
x = 269,524,491,033,394,144/495,048,486.50 - Step 6: Final answer
x = 544,440,591.95
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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.