Finding the Fourth Proportional to 13,193,625.60, 18,207,129.60 and 7,470,489.60
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Solution
The fourth proportional to 13,193,625.60, 18,207,129.60 and 7,470,489.60 is: 10,309,233.90
Step by Step Solution
- Step 1: Write the proportion equation
13,193,625.60 : 18,207,129.60 = 7,470,489.60 : x - Step 2: Convert to fraction form
13,193,625.60/18,207,129.60 = 7,470,489.60/x - Step 3: Cross multiply
13,193,625.60x = 18,207,129.60 × 7,470,489.60 - Step 4: Simplify right side
13,193,625.60x = 136,016,172,322,652.17 - Step 5: Solve for x
x = 136,016,172,322,652.17/13,193,625.60 - Step 6: Final answer
x = 10,309,233.90
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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.