Finding the Fourth Proportional to 5,215,147.47, 7,197,347.30 and 2,923,751.03
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Solution
The fourth proportional to 5,215,147.47, 7,197,347.30 and 2,923,751.03 is: 4,035,025.21
Step by Step Solution
- Step 1: Write the proportion equation
5,215,147.47 : 7,197,347.30 = 2,923,751.03 : x - Step 2: Convert to fraction form
5,215,147.47/7,197,347.30 = 2,923,751.03/x - Step 3: Cross multiply
5,215,147.47x = 7,197,347.30 × 2,923,751.03 - Step 4: Simplify right side
5,215,147.47x = 21,043,251,531,037.23 - Step 5: Solve for x
x = 21,043,251,531,037.23/5,215,147.47 - Step 6: Final answer
x = 4,035,025.21
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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.