Finding the Fourth Proportional to 7,045,544.64, 9,722,851.20 and 3,990,349.44
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Solution
The fourth proportional to 7,045,544.64, 9,722,851.20 and 3,990,349.44 is: 5,506,682.00
Step by Step Solution
- Step 1: Write the proportion equation
7,045,544.64 : 9,722,851.20 = 3,990,349.44 : x - Step 2: Convert to fraction form
7,045,544.64/9,722,851.20 = 3,990,349.44/x - Step 3: Cross multiply
7,045,544.64x = 9,722,851.20 × 3,990,349.44 - Step 4: Simplify right side
7,045,544.64x = 38,797,573,841,123.33 - Step 5: Solve for x
x = 38,797,573,841,123.33/7,045,544.64 - Step 6: Final answer
x = 5,506,682.00
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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.