Finding the Fourth Proportional to 18,111,418.24, 27,157,776.96 and 5,330,262.40
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Solution
The fourth proportional to 18,111,418.24, 27,157,776.96 and 5,330,262.40 is: 7,992,641.74
Step by Step Solution
- Step 1: Write the proportion equation
18,111,418.24 : 27,157,776.96 = 5,330,262.40 : x - Step 2: Convert to fraction form
18,111,418.24/27,157,776.96 = 5,330,262.40/x - Step 3: Cross multiply
18,111,418.24x = 27,157,776.96 × 5,330,262.40 - Step 4: Simplify right side
18,111,418.24x = 144,758,077,397,474.31 - Step 5: Solve for x
x = 144,758,077,397,474.31/18,111,418.24 - Step 6: Final answer
x = 7,992,641.74
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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.