Finding the Fourth Proportional to 18,589,620.30, 27,884,430.45 and 4,942,740.30
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Solution
The fourth proportional to 18,589,620.30, 27,884,430.45 and 4,942,740.30 is: 7,414,110.45
Step by Step Solution
- Step 1: Write the proportion equation
18,589,620.30 : 27,884,430.45 = 4,942,740.30 : x - Step 2: Convert to fraction form
18,589,620.30/27,884,430.45 = 4,942,740.30/x - Step 3: Cross multiply
18,589,620.30x = 27,884,430.45 × 4,942,740.30 - Step 4: Simplify right side
18,589,620.30x = 137,825,498,127,762.12 - Step 5: Solve for x
x = 137,825,498,127,762.12/18,589,620.30 - Step 6: Final answer
x = 7,414,110.45
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1.5x scale
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.