Finding the Fourth Proportional to 7,349,431.40, 11,024,147.10 and 5,318,145.80
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Solution
The fourth proportional to 7,349,431.40, 11,024,147.10 and 5,318,145.80 is: 7,977,218.70
Step by Step Solution
- Step 1: Write the proportion equation
7,349,431.40 : 11,024,147.10 = 5,318,145.80 : x - Step 2: Convert to fraction form
7,349,431.40/11,024,147.10 = 5,318,145.80/x - Step 3: Cross multiply
7,349,431.40x = 11,024,147.10 × 5,318,145.80 - Step 4: Simplify right side
7,349,431.40x = 58,628,021,598,447.18 - Step 5: Solve for x
x = 58,628,021,598,447.18/7,349,431.40 - Step 6: Final answer
x = 7,977,218.70
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1.5x scale
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.