Finding the Fourth Proportional to 5,139,244.80, 7,708,867.20 and 4,608,403.20
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Solution
The fourth proportional to 5,139,244.80, 7,708,867.20 and 4,608,403.20 is: 6,912,604.80
Step by Step Solution
- Step 1: Write the proportion equation
5,139,244.80 : 7,708,867.20 = 4,608,403.20 : x - Step 2: Convert to fraction form
5,139,244.80/7,708,867.20 = 4,608,403.20/x - Step 3: Cross multiply
5,139,244.80x = 7,708,867.20 × 4,608,403.20 - Step 4: Simplify right side
5,139,244.80x = 35,525,568,272,855.04 - Step 5: Solve for x
x = 35,525,568,272,855.04/5,139,244.80 - Step 6: Final answer
x = 6,912,604.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.