Finding the Fourth Proportional to 18,343,831.20, 27,508,748.40 and 5,560,087.20
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Solution
The fourth proportional to 18,343,831.20, 27,508,748.40 and 5,560,087.20 is: 8,338,009.56
Step by Step Solution
- Step 1: Write the proportion equation
18,343,831.20 : 27,508,748.40 = 5,560,087.20 : x - Step 2: Convert to fraction form
18,343,831.20/27,508,748.40 = 5,560,087.20/x - Step 3: Cross multiply
18,343,831.20x = 27,508,748.40 × 5,560,087.20 - Step 4: Simplify right side
18,343,831.20x = 152,951,039,866,860.47 - Step 5: Solve for x
x = 152,951,039,866,860.47/18,343,831.20 - Step 6: Final answer
x = 8,338,009.56
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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.