Finding the Fourth Proportional to 13,342,232.10, 18,412,271.53 and 7,230,660.62
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Solution
The fourth proportional to 13,342,232.10, 18,412,271.53 and 7,230,660.62 is: 9,978,306.90
Step by Step Solution
- Step 1: Write the proportion equation
13,342,232.10 : 18,412,271.53 = 7,230,660.62 : x - Step 2: Convert to fraction form
13,342,232.10/18,412,271.53 = 7,230,660.62/x - Step 3: Cross multiply
13,342,232.10x = 18,412,271.53 × 7,230,660.62 - Step 4: Simplify right side
13,342,232.10x = 133,132,886,676,718.16 - Step 5: Solve for x
x = 133,132,886,676,718.16/13,342,232.10 - Step 6: Final answer
x = 9,978,306.90
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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.