Finding the Fourth Proportional to 13,117,794.12, 18,102,618.82 and 7,237,427.97
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Solution
The fourth proportional to 13,117,794.12, 18,102,618.82 and 7,237,427.97 is: 9,987,685.32
Step by Step Solution
- Step 1: Write the proportion equation
13,117,794.12 : 18,102,618.82 = 7,237,427.97 : x - Step 2: Convert to fraction form
13,117,794.12/18,102,618.82 = 7,237,427.97/x - Step 3: Cross multiply
13,117,794.12x = 18,102,618.82 × 7,237,427.97 - Step 4: Simplify right side
13,117,794.12x = 131,016,399,778,116.39 - Step 5: Solve for x
x = 131,016,399,778,116.39/13,117,794.12 - Step 6: Final answer
x = 9,987,685.32
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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.