Finding the Fourth Proportional to 18,372,579.93, 27,558,941.99 and 7,442,976.29
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Solution
The fourth proportional to 18,372,579.93, 27,558,941.99 and 7,442,976.29 is: 11,164,493.63
Step by Step Solution
- Step 1: Write the proportion equation
18,372,579.93 : 27,558,941.99 = 7,442,976.29 : x - Step 2: Convert to fraction form
18,372,579.93/27,558,941.99 = 7,442,976.29/x - Step 3: Cross multiply
18,372,579.93x = 27,558,941.99 × 7,442,976.29 - Step 4: Simplify right side
18,372,579.93x = 205,120,551,634,045.81 - Step 5: Solve for x
x = 205,120,551,634,045.81/18,372,579.93 - Step 6: Final answer
x = 11,164,493.63
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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.