Finding the Fourth Proportional to 18,398,780.19, 27,567,660.65 and 11,188,503.63
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Solution
The fourth proportional to 18,398,780.19, 27,567,660.65 and 11,188,503.63 is: 16,764,202.19
Step by Step Solution
- Step 1: Write the proportion equation
18,398,780.19 : 27,567,660.65 = 11,188,503.63 : x - Step 2: Convert to fraction form
18,398,780.19/27,567,660.65 = 11,188,503.63/x - Step 3: Cross multiply
18,398,780.19x = 27,567,660.65 × 11,188,503.63 - Step 4: Simplify right side
18,398,780.19x = 308,440,871,197,190.69 - Step 5: Solve for x
x = 308,440,871,197,190.69/18,398,780.19 - Step 6: Final answer
x = 16,764,202.19
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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.