Finding the Fourth Proportional to 20,344,769.87, 28,075,806.97 and 11,052,346.19
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Solution
The fourth proportional to 20,344,769.87, 28,075,806.97 and 11,052,346.19 is: 15,252,251.07
Step by Step Solution
- Step 1: Write the proportion equation
20,344,769.87 : 28,075,806.97 = 11,052,346.19 : x - Step 2: Convert to fraction form
20,344,769.87/28,075,806.97 = 11,052,346.19/x - Step 3: Cross multiply
20,344,769.87x = 28,075,806.97 × 11,052,346.19 - Step 4: Simplify right side
20,344,769.87x = 310,303,538,028,045.06 - Step 5: Solve for x
x = 310,303,538,028,045.06/20,344,769.87 - Step 6: Final answer
x = 15,252,251.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.