Finding the Fourth Proportional to 13,546,531.99, 18,694,351 and 7,351,632.20
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Solution
The fourth proportional to 13,546,531.99, 18,694,351 and 7,351,632.20 is: 10,145,326.71
Step by Step Solution
- Step 1: Write the proportion equation
13,546,531.99 : 18,694,351 = 7,351,632.20 : x - Step 2: Convert to fraction form
13,546,531.99/18,694,351 = 7,351,632.20/x - Step 3: Cross multiply
13,546,531.99x = 18,694,351 × 7,351,632.20 - Step 4: Simplify right side
13,546,531.99x = 137,433,992,769,702.20 - Step 5: Solve for x
x = 137,433,992,769,702.20/13,546,531.99 - Step 6: Final answer
x = 10,145,326.71
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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.