Finding the Fourth Proportional to 20,419,157.67, 30,633,501.12 and 6,771,305.67
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Solution
The fourth proportional to 20,419,157.67, 30,633,501.12 and 6,771,305.67 is: 10,158,538.52
Step by Step Solution
- Step 1: Write the proportion equation
20,419,157.67 : 30,633,501.12 = 6,771,305.67 : x - Step 2: Convert to fraction form
20,419,157.67/30,633,501.12 = 6,771,305.67/x - Step 3: Cross multiply
20,419,157.67x = 30,633,501.12 × 6,771,305.67 - Step 4: Simplify right side
20,419,157.67x = 207,428,799,825,807.34 - Step 5: Solve for x
x = 207,428,799,825,807.34/20,419,157.67 - Step 6: Final answer
x = 10,158,538.52
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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.