Finding the Fourth Proportional to 18,216,523.41, 27,320,756.14 and 5,259,862.72
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Solution
The fourth proportional to 18,216,523.41, 27,320,756.14 and 5,259,862.72 is: 7,888,630.75
Step by Step Solution
- Step 1: Write the proportion equation
18,216,523.41 : 27,320,756.14 = 5,259,862.72 : x - Step 2: Convert to fraction form
18,216,523.41/27,320,756.14 = 5,259,862.72/x - Step 3: Cross multiply
18,216,523.41x = 27,320,756.14 × 5,259,862.72 - Step 4: Simplify right side
18,216,523.41x = 143,703,426,702,997.09 - Step 5: Solve for x
x = 143,703,426,702,997.09/18,216,523.41 - Step 6: Final answer
x = 7,888,630.75
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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.