Finding the Fourth Proportional to 12,251,664.08, 18,349,502.51 and 7,212,816.08
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Solution
The fourth proportional to 12,251,664.08, 18,349,502.51 and 7,212,816.08 is: 10,802,743.68
Step by Step Solution
- Step 1: Write the proportion equation
12,251,664.08 : 18,349,502.51 = 7,212,816.08 : x - Step 2: Convert to fraction form
12,251,664.08/18,349,502.51 = 7,212,816.08/x - Step 3: Cross multiply
12,251,664.08x = 18,349,502.51 × 7,212,816.08 - Step 4: Simplify right side
12,251,664.08x = 132,351,586,690,412.89 - Step 5: Solve for x
x = 132,351,586,690,412.89/12,251,664.08 - Step 6: Final answer
x = 10,802,743.68
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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.