Finding the Fourth Proportional to 13,291,410.88, 18,342,163.48 and 7,179,839.44
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Solution
The fourth proportional to 13,291,410.88, 18,342,163.48 and 7,179,839.44 is: 9,908,187.32
Step by Step Solution
- Step 1: Write the proportion equation
13,291,410.88 : 18,342,163.48 = 7,179,839.44 : x - Step 2: Convert to fraction form
13,291,410.88/18,342,163.48 = 7,179,839.44/x - Step 3: Cross multiply
13,291,410.88x = 18,342,163.48 × 7,179,839.44 - Step 4: Simplify right side
13,291,410.88x = 131,693,788,768,631.66 - Step 5: Solve for x
x = 131,693,788,768,631.66/13,291,410.88 - Step 6: Final answer
x = 9,908,187.32
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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.