Finding the Fourth Proportional to 13,209,866.67, 18,230,614.43 and 7,330,613.79
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Solution
The fourth proportional to 13,209,866.67, 18,230,614.43 and 7,330,613.79 is: 10,116,801.09
Step by Step Solution
- Step 1: Write the proportion equation
13,209,866.67 : 18,230,614.43 = 7,330,613.79 : x - Step 2: Convert to fraction form
13,209,866.67/18,230,614.43 = 7,330,613.79/x - Step 3: Cross multiply
13,209,866.67x = 18,230,614.43 × 7,330,613.79 - Step 4: Simplify right side
13,209,866.67x = 133,641,593,504,077.92 - Step 5: Solve for x
x = 133,641,593,504,077.92/13,209,866.67 - Step 6: Final answer
x = 10,116,801.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.