Finding the Fourth Proportional to 13,122,238.26, 18,109,213.66 and 7,321,526.94
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Solution
The fourth proportional to 13,122,238.26, 18,109,213.66 and 7,321,526.94 is: 10,104,000.02
Step by Step Solution
- Step 1: Write the proportion equation
13,122,238.26 : 18,109,213.66 = 7,321,526.94 : x - Step 2: Convert to fraction form
13,122,238.26/18,109,213.66 = 7,321,526.94/x - Step 3: Cross multiply
13,122,238.26x = 18,109,213.66 × 7,321,526.94 - Step 4: Simplify right side
13,122,238.26x = 132,587,095,673,906.02 - Step 5: Solve for x
x = 132,587,095,673,906.02/13,122,238.26 - Step 6: Final answer
x = 10,104,000.02
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1.5x scale
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.