Finding the Fourth Proportional to 38,566,221.44, 53,221,239.54 and 21,162,857.84
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Solution
The fourth proportional to 38,566,221.44, 53,221,239.54 and 21,162,857.84 is: 29,204,663.68
Step by Step Solution
- Step 1: Write the proportion equation
38,566,221.44 : 53,221,239.54 = 21,162,857.84 : x - Step 2: Convert to fraction form
38,566,221.44/53,221,239.54 = 21,162,857.84/x - Step 3: Cross multiply
38,566,221.44x = 53,221,239.54 × 21,162,857.84 - Step 4: Simplify right side
38,566,221.44x = 1,126,313,526,453,607 - Step 5: Solve for x
x = 1,126,313,526,453,607/38,566,221.44 - Step 6: Final answer
x = 29,204,663.68
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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.