Finding the Fourth Proportional to 21,386,887.11, 32,084,324.37 and 9,716,078.03
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Solution
The fourth proportional to 21,386,887.11, 32,084,324.37 and 9,716,078.03 is: 14,575,931.38
Step by Step Solution
- Step 1: Write the proportion equation
21,386,887.11 : 32,084,324.37 = 9,716,078.03 : x - Step 2: Convert to fraction form
21,386,887.11/32,084,324.37 = 9,716,078.03/x - Step 3: Cross multiply
21,386,887.11x = 32,084,324.37 × 9,716,078.03 - Step 4: Simplify right side
21,386,887.11x = 311,733,798,958,329 - Step 5: Solve for x
x = 311,733,798,958,329/21,386,887.11 - Step 6: Final answer
x = 14,575,931.38
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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.