Finding the Fourth Proportional to 486,315,872.51, 671,107,892.42 and 263,295,770.99
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Solution
The fourth proportional to 486,315,872.51, 671,107,892.42 and 263,295,770.99 is: 363,343,826.38
Step by Step Solution
- Step 1: Write the proportion equation
486,315,872.51 : 671,107,892.42 = 263,295,770.99 : x - Step 2: Convert to fraction form
486,315,872.51/671,107,892.42 = 263,295,770.99/x - Step 3: Cross multiply
486,315,872.51x = 671,107,892.42 × 263,295,770.99 - Step 4: Simplify right side
486,315,872.51x = 176,699,869,947,525,856 - Step 5: Solve for x
x = 176,699,869,947,525,856/486,315,872.51 - Step 6: Final answer
x = 363,343,826.38
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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.