Finding the Fourth Proportional to 18,402,407.60, 27,604,923.60 and 5,622,891.80
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Solution
The fourth proportional to 18,402,407.60, 27,604,923.60 and 5,622,891.80 is: 8,434,738.65
Step by Step Solution
- Step 1: Write the proportion equation
18,402,407.60 : 27,604,923.60 = 5,622,891.80 : x - Step 2: Convert to fraction form
18,402,407.60/27,604,923.60 = 5,622,891.80/x - Step 3: Cross multiply
18,402,407.60x = 27,604,923.60 × 5,622,891.80 - Step 4: Simplify right side
18,402,407.60x = 155,219,498,550,066.47 - Step 5: Solve for x
x = 155,219,498,550,066.47/18,402,407.60 - Step 6: Final answer
x = 8,434,738.65
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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.