Finding the Fourth Proportional to 13,125,926.10, 18,113,781.39 and 7,245,563.61
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Solution
The fourth proportional to 13,125,926.10, 18,113,781.39 and 7,245,563.61 is: 9,998,879.64
Step by Step Solution
- Step 1: Write the proportion equation
13,125,926.10 : 18,113,781.39 = 7,245,563.61 : x - Step 2: Convert to fraction form
13,125,926.10/18,113,781.39 = 7,245,563.61/x - Step 3: Cross multiply
13,125,926.10x = 18,113,781.39 × 7,245,563.61 - Step 4: Simplify right side
13,125,926.10x = 131,244,555,278,879.23 - Step 5: Solve for x
x = 131,244,555,278,879.23/13,125,926.10 - Step 6: Final answer
x = 9,998,879.64
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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.