Finding the Fourth Proportional to 230,818,691.21, 318,520,227.85 and 126,394,963.38
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Solution
The fourth proportional to 230,818,691.21, 318,520,227.85 and 126,394,963.38 is: 174,419,811.17
Step by Step Solution
- Step 1: Write the proportion equation
230,818,691.21 : 318,520,227.85 = 126,394,963.38 : x - Step 2: Convert to fraction form
230,818,691.21/318,520,227.85 = 126,394,963.38/x - Step 3: Cross multiply
230,818,691.21x = 318,520,227.85 × 126,394,963.38 - Step 4: Simplify right side
230,818,691.21x = 40,259,352,534,890,008 - Step 5: Solve for x
x = 40,259,352,534,890,008/230,818,691.21 - Step 6: Final answer
x = 174,419,811.17
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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.