Finding the Fourth Proportional to 7,453,509.12, 10,286,207.04 and 4,191,350.40
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Solution
The fourth proportional to 7,453,509.12, 10,286,207.04 and 4,191,350.40 is: 5,784,268.50
Step by Step Solution
- Step 1: Write the proportion equation
7,453,509.12 : 10,286,207.04 = 4,191,350.40 : x - Step 2: Convert to fraction form
7,453,509.12/10,286,207.04 = 4,191,350.40/x - Step 3: Cross multiply
7,453,509.12x = 10,286,207.04 × 4,191,350.40 - Step 4: Simplify right side
7,453,509.12x = 43,113,097,991,586.81 - Step 5: Solve for x
x = 43,113,097,991,586.81/7,453,509.12 - Step 6: Final answer
x = 5,784,268.50
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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.