Finding the Fourth Proportional to 12,960,550.84, 17,872,163.58 and 11,131,066.84
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Solution
The fourth proportional to 12,960,550.84, 17,872,163.58 and 11,131,066.84 is: 15,349,366.69
Step by Step Solution
- Step 1: Write the proportion equation
12,960,550.84 : 17,872,163.58 = 11,131,066.84 : x - Step 2: Convert to fraction form
12,960,550.84/17,872,163.58 = 11,131,066.84/x - Step 3: Cross multiply
12,960,550.84x = 17,872,163.58 × 11,131,066.84 - Step 4: Simplify right side
12,960,550.84x = 198,936,247,384,393.66 - Step 5: Solve for x
x = 198,936,247,384,393.66/12,960,550.84 - Step 6: Final answer
x = 15,349,366.69
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1.5x scale
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.