Finding the Fourth Proportional to 13,121,693.96, 19,691,320.17 and 5,445,338.54
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Solution
The fourth proportional to 13,121,693.96, 19,691,320.17 and 5,445,338.54 is: 8,171,651.08
Step by Step Solution
- Step 1: Write the proportion equation
13,121,693.96 : 19,691,320.17 = 5,445,338.54 : x - Step 2: Convert to fraction form
13,121,693.96/19,691,320.17 = 5,445,338.54/x - Step 3: Cross multiply
13,121,693.96x = 19,691,320.17 × 5,445,338.54 - Step 4: Simplify right side
13,121,693.96x = 107,225,904,625,180.36 - Step 5: Solve for x
x = 107,225,904,625,180.36/13,121,693.96 - Step 6: Final answer
x = 8,171,651.08
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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.