Finding the Fourth Proportional to 19,765,635.63, 27,276,855.69 and 11,388,375.51
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Solution
The fourth proportional to 19,765,635.63, 27,276,855.69 and 11,388,375.51 is: 15,716,118.68
Step by Step Solution
- Step 1: Write the proportion equation
19,765,635.63 : 27,276,855.69 = 11,388,375.51 : x - Step 2: Convert to fraction form
19,765,635.63/27,276,855.69 = 11,388,375.51/x - Step 3: Cross multiply
19,765,635.63x = 27,276,855.69 × 11,388,375.51 - Step 4: Simplify right side
19,765,635.63x = 310,639,075,329,800.19 - Step 5: Solve for x
x = 310,639,075,329,800.19/19,765,635.63 - Step 6: Final answer
x = 15,716,118.68
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.