Finding the Fourth Proportional to 675,649,777.19, 932,494,581.11 and 378,311,181.05
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Solution
The fourth proportional to 675,649,777.19, 932,494,581.11 and 378,311,181.05 is: 522,124,239.83
Step by Step Solution
- Step 1: Write the proportion equation
675,649,777.19 : 932,494,581.11 = 378,311,181.05 : x - Step 2: Convert to fraction form
675,649,777.19/932,494,581.11 = 378,311,181.05/x - Step 3: Cross multiply
675,649,777.19x = 932,494,581.11 × 378,311,181.05 - Step 4: Simplify right side
675,649,777.19x = 352,773,126,305,726,144 - Step 5: Solve for x
x = 352,773,126,305,726,144/675,649,777.19 - Step 6: Final answer
x = 522,124,239.83
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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.