Finding the Fourth Proportional to 5,437,691.21, 7,503,855.17 and 2,990,299.70
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Solution
The fourth proportional to 5,437,691.21, 7,503,855.17 and 2,990,299.70 is: 4,126,526.31
Step by Step Solution
- Step 1: Write the proportion equation
5,437,691.21 : 7,503,855.17 = 2,990,299.70 : x - Step 2: Convert to fraction form
5,437,691.21/7,503,855.17 = 2,990,299.70/x - Step 3: Cross multiply
5,437,691.21x = 7,503,855.17 × 2,990,299.70 - Step 4: Simplify right side
5,437,691.21x = 22,438,775,811,223.67 - Step 5: Solve for x
x = 22,438,775,811,223.67/5,437,691.21 - Step 6: Final answer
x = 4,126,526.31
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1.5x scale
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.