Finding the Fourth Proportional to 18,503,620.24, 27,642,974.06 and 11,973,497.34
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Solution
The fourth proportional to 18,503,620.24, 27,642,974.06 and 11,973,497.34 is: 17,887,476.73
Step by Step Solution
- Step 1: Write the proportion equation
18,503,620.24 : 27,642,974.06 = 11,973,497.34 : x - Step 2: Convert to fraction form
18,503,620.24/27,642,974.06 = 11,973,497.34/x - Step 3: Cross multiply
18,503,620.24x = 27,642,974.06 × 11,973,497.34 - Step 4: Simplify right side
18,503,620.24x = 330,983,076,377,099 - Step 5: Solve for x
x = 330,983,076,377,099/18,503,620.24 - Step 6: Final answer
x = 17,887,476.73
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.