Finding the Fourth Proportional to 230,721,198.42, 318,395,230.20 and 126,299,340.48
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Solution
The fourth proportional to 230,721,198.42, 318,395,230.20 and 126,299,340.48 is: 174,293,076.93
Step by Step Solution
- Step 1: Write the proportion equation
230,721,198.42 : 318,395,230.20 = 126,299,340.48 : x - Step 2: Convert to fraction form
230,721,198.42/318,395,230.20 = 126,299,340.48/x - Step 3: Cross multiply
230,721,198.42x = 318,395,230.20 × 126,299,340.48 - Step 4: Simplify right side
230,721,198.42x = 40,213,107,586,237,776 - Step 5: Solve for x
x = 40,213,107,586,237,776/230,721,198.42 - Step 6: Final answer
x = 174,293,076.93
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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.