Finding the Fourth Proportional to 5,128,857.13, 7,040,759.63 and 4,402,443.73
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Solution
The fourth proportional to 5,128,857.13, 7,040,759.63 and 4,402,443.73 is: 6,043,558.50
Step by Step Solution
- Step 1: Write the proportion equation
5,128,857.13 : 7,040,759.63 = 4,402,443.73 : x - Step 2: Convert to fraction form
5,128,857.13/7,040,759.63 = 4,402,443.73/x - Step 3: Cross multiply
5,128,857.13x = 7,040,759.63 × 4,402,443.73 - Step 4: Simplify right side
5,128,857.13x = 30,996,548,087,530.62 - Step 5: Solve for x
x = 30,996,548,087,530.62/5,128,857.13 - Step 6: Final answer
x = 6,043,558.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.