Finding the Fourth Proportional to 5,415,815.28, 8,124,240.48 and 1,525,262.68
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Solution
The fourth proportional to 5,415,815.28, 8,124,240.48 and 1,525,262.68 is: 2,288,039.78
Step by Step Solution
- Step 1: Write the proportion equation
5,415,815.28 : 8,124,240.48 = 1,525,262.68 : x - Step 2: Convert to fraction form
5,415,815.28/8,124,240.48 = 1,525,262.68/x - Step 3: Cross multiply
5,415,815.28x = 8,124,240.48 × 1,525,262.68 - Step 4: Simplify right side
5,415,815.28x = 12,391,600,807,489.29 - Step 5: Solve for x
x = 12,391,600,807,489.29/5,415,815.28 - Step 6: Final answer
x = 2,288,039.78
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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.