Finding the Fourth Proportional to 36,948,811.92, 50,991,137.64 and 20,428,630.80
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Solution
The fourth proportional to 36,948,811.92, 50,991,137.64 and 20,428,630.80 is: 28,192,493.09
Step by Step Solution
- Step 1: Write the proportion equation
36,948,811.92 : 50,991,137.64 = 20,428,630.80 : x - Step 2: Convert to fraction form
36,948,811.92/50,991,137.64 = 20,428,630.80/x - Step 3: Cross multiply
36,948,811.92x = 50,991,137.64 × 20,428,630.80 - Step 4: Simplify right side
36,948,811.92x = 1,041,679,124,919,543.38 - Step 5: Solve for x
x = 1,041,679,124,919,543.38/36,948,811.92 - Step 6: Final answer
x = 28,192,493.09
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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.