Finding the Fourth Proportional to 18,407,609.36, 25,402,577.65 and 10,147,490.18
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Solution
The fourth proportional to 18,407,609.36, 25,402,577.65 and 10,147,490.18 is: 14,003,578.75
Step by Step Solution
- Step 1: Write the proportion equation
18,407,609.36 : 25,402,577.65 = 10,147,490.18 : x - Step 2: Convert to fraction form
18,407,609.36/25,402,577.65 = 10,147,490.18/x - Step 3: Cross multiply
18,407,609.36x = 25,402,577.65 × 10,147,490.18 - Step 4: Simplify right side
18,407,609.36x = 257,772,407,288,200.19 - Step 5: Solve for x
x = 257,772,407,288,200.19/18,407,609.36 - Step 6: Final answer
x = 14,003,578.75
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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.