Finding the Fourth Proportional to 5,179,775.99, 7,148,137.07 and 2,856,758.36
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Solution
The fourth proportional to 5,179,775.99, 7,148,137.07 and 2,856,758.36 is: 3,942,352.02
Step by Step Solution
- Step 1: Write the proportion equation
5,179,775.99 : 7,148,137.07 = 2,856,758.36 : x - Step 2: Convert to fraction form
5,179,775.99/7,148,137.07 = 2,856,758.36/x - Step 3: Cross multiply
5,179,775.99x = 7,148,137.07 × 2,856,758.36 - Step 4: Simplify right side
5,179,775.99x = 20,420,500,304,549.61 - Step 5: Solve for x
x = 20,420,500,304,549.61/5,179,775.99 - Step 6: Final answer
x = 3,942,352.02
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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.