Finding the Fourth Proportional to 18,789,940.26, 28,184,910.40 and 4,606,516.26
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Solution
The fourth proportional to 18,789,940.26, 28,184,910.40 and 4,606,516.26 is: 6,909,774.39
Step by Step Solution
- Step 1: Write the proportion equation
18,789,940.26 : 28,184,910.40 = 4,606,516.26 : x - Step 2: Convert to fraction form
18,789,940.26/28,184,910.40 = 4,606,516.26/x - Step 3: Cross multiply
18,789,940.26x = 28,184,910.40 × 4,606,516.26 - Step 4: Simplify right side
18,789,940.26x = 129,834,248,044,243.09 - Step 5: Solve for x
x = 129,834,248,044,243.09/18,789,940.26 - Step 6: Final answer
x = 6,909,774.39
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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.