Finding the Fourth Proportional to 21,126,344.87, 31,691,665.58 and 7,291,503.05
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Solution
The fourth proportional to 21,126,344.87, 31,691,665.58 and 7,291,503.05 is: 10,937,996.02
Step by Step Solution
- Step 1: Write the proportion equation
21,126,344.87 : 31,691,665.58 = 7,291,503.05 : x - Step 2: Convert to fraction form
21,126,344.87/31,691,665.58 = 7,291,503.05/x - Step 3: Cross multiply
21,126,344.87x = 31,691,665.58 × 7,291,503.05 - Step 4: Simplify right side
21,126,344.87x = 231,079,876,041,234.16 - Step 5: Solve for x
x = 231,079,876,041,234.16/21,126,344.87 - Step 6: Final answer
x = 10,937,996.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.