Finding the Fourth Proportional to 18,170,395.52, 27,252,357.12 and 7,239,669.05
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Solution
The fourth proportional to 18,170,395.52, 27,252,357.12 and 7,239,669.05 is: 10,858,214.19
Step by Step Solution
- Step 1: Write the proportion equation
18,170,395.52 : 27,252,357.12 = 7,239,669.05 : x - Step 2: Convert to fraction form
18,170,395.52/27,252,357.12 = 7,239,669.05/x - Step 3: Cross multiply
18,170,395.52x = 27,252,357.12 × 7,239,669.05 - Step 4: Simplify right side
18,170,395.52x = 197,298,046,457,135.56 - Step 5: Solve for x
x = 197,298,046,457,135.56/18,170,395.52 - Step 6: Final answer
x = 10,858,214.19
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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.