Finding the Fourth Proportional to 20,282,332.41, 27,989,716.19 and 10,989,900.03
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Solution
The fourth proportional to 20,282,332.41, 27,989,716.19 and 10,989,900.03 is: 15,166,114.84
Step by Step Solution
- Step 1: Write the proportion equation
20,282,332.41 : 27,989,716.19 = 10,989,900.03 : x - Step 2: Convert to fraction form
20,282,332.41/27,989,716.19 = 10,989,900.03/x - Step 3: Cross multiply
20,282,332.41x = 27,989,716.19 × 10,989,900.03 - Step 4: Simplify right side
20,282,332.41x = 307,604,182,683,698.62 - Step 5: Solve for x
x = 307,604,182,683,698.62/20,282,332.41 - Step 6: Final answer
x = 15,166,114.84
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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.