Finding the Fourth Proportional to 13,167,149.59, 18,170,693.11 and 7,366,028.21
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Solution
The fourth proportional to 13,167,149.59, 18,170,693.11 and 7,366,028.21 is: 10,165,133.85
Step by Step Solution
- Step 1: Write the proportion equation
13,167,149.59 : 18,170,693.11 = 7,366,028.21 : x - Step 2: Convert to fraction form
13,167,149.59/18,170,693.11 = 7,366,028.21/x - Step 3: Cross multiply
13,167,149.59x = 18,170,693.11 × 7,366,028.21 - Step 4: Simplify right side
13,167,149.59x = 133,845,838,043,512.62 - Step 5: Solve for x
x = 133,845,838,043,512.62/13,167,149.59 - Step 6: Final answer
x = 10,165,133.85
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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.