Finding the Fourth Proportional to 5,387,102.35, 7,434,359.23 and 2,939,871.40
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Solution
The fourth proportional to 5,387,102.35, 7,434,359.23 and 2,939,871.40 is: 4,057,108.75
Step by Step Solution
- Step 1: Write the proportion equation
5,387,102.35 : 7,434,359.23 = 2,939,871.40 : x - Step 2: Convert to fraction form
5,387,102.35/7,434,359.23 = 2,939,871.40/x - Step 3: Cross multiply
5,387,102.35x = 7,434,359.23 × 2,939,871.40 - Step 4: Simplify right side
5,387,102.35x = 21,856,060,040,431.23 - Step 5: Solve for x
x = 21,856,060,040,431.23/5,387,102.35 - Step 6: Final answer
x = 4,057,108.75
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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.