Finding the Fourth Proportional to 38,785,873.60, 53,524,918.07 and 21,382,841.62
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Solution
The fourth proportional to 38,785,873.60, 53,524,918.07 and 21,382,841.62 is: 29,508,548.85
Step by Step Solution
- Step 1: Write the proportion equation
38,785,873.60 : 53,524,918.07 = 21,382,841.62 : x - Step 2: Convert to fraction form
38,785,873.60/53,524,918.07 = 21,382,841.62/x - Step 3: Cross multiply
38,785,873.60x = 53,524,918.07 × 21,382,841.62 - Step 4: Simplify right side
38,785,873.60x = 1,144,514,845,814,286.25 - Step 5: Solve for x
x = 1,144,514,845,814,286.25/38,785,873.60 - Step 6: Final answer
x = 29,508,548.85
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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.