Finding the Fourth Proportional to 84,278,791.68, 126,418,350.12 and 32,487,783.36
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Solution
The fourth proportional to 84,278,791.68, 126,418,350.12 and 32,487,783.36 is: 48,731,737.72
Step by Step Solution
- Step 1: Write the proportion equation
84,278,791.68 : 126,418,350.12 = 32,487,783.36 : x - Step 2: Convert to fraction form
84,278,791.68/126,418,350.12 = 32,487,783.36/x - Step 3: Cross multiply
84,278,791.68x = 126,418,350.12 × 32,487,783.36 - Step 4: Simplify right side
84,278,791.68x = 4,107,051,971,427,190 - Step 5: Solve for x
x = 4,107,051,971,427,190/84,278,791.68 - Step 6: Final answer
x = 48,731,737.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.