Finding the Fourth Proportional to 449,092,636.76, 620,354,424.12 and 338,420,047.52
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Solution
The fourth proportional to 449,092,636.76, 620,354,424.12 and 338,420,047.52 is: 467,476,766.50
Step by Step Solution
- Step 1: Write the proportion equation
449,092,636.76 : 620,354,424.12 = 338,420,047.52 : x - Step 2: Convert to fraction form
449,092,636.76/620,354,424.12 = 338,420,047.52/x - Step 3: Cross multiply
449,092,636.76x = 620,354,424.12 × 338,420,047.52 - Step 4: Simplify right side
449,092,636.76x = 209,940,373,689,932,608 - Step 5: Solve for x
x = 209,940,373,689,932,608/449,092,636.76 - Step 6: Final answer
x = 467,476,766.50
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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.