Finding the Fourth Proportional to 18,218,335.61, 25,141,301.36 and 9,958,431.08
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Solution
The fourth proportional to 18,218,335.61, 25,141,301.36 and 9,958,431.08 is: 13,742,633.92
Step by Step Solution
- Step 1: Write the proportion equation
18,218,335.61 : 25,141,301.36 = 9,958,431.08 : x - Step 2: Convert to fraction form
18,218,335.61/25,141,301.36 = 9,958,431.08/x - Step 3: Cross multiply
18,218,335.61x = 25,141,301.36 × 9,958,431.08 - Step 4: Simplify right side
18,218,335.61x = 250,367,916,868,131.38 - Step 5: Solve for x
x = 250,367,916,868,131.38/18,218,335.61 - Step 6: Final answer
x = 13,742,633.92
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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.