Finding the Fourth Proportional to 21,192,709.09, 31,742,716.14 and 15,025,998.19
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Solution
The fourth proportional to 21,192,709.09, 31,742,716.14 and 15,025,998.19 is: 22,506,136.11
Step by Step Solution
- Step 1: Write the proportion equation
21,192,709.09 : 31,742,716.14 = 15,025,998.19 : x - Step 2: Convert to fraction form
21,192,709.09/31,742,716.14 = 15,025,998.19/x - Step 3: Cross multiply
21,192,709.09x = 31,742,716.14 × 15,025,998.19 - Step 4: Simplify right side
21,192,709.09x = 476,965,995,106,610.25 - Step 5: Solve for x
x = 476,965,995,106,610.25/21,192,709.09 - Step 6: Final answer
x = 22,506,136.11
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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.