Finding the Fourth Proportional to 38,566,207.38, 53,221,220.18 and 21,162,843.84
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Solution
The fourth proportional to 38,566,207.38, 53,221,220.18 and 21,162,843.84 is: 29,204,644.38
Step by Step Solution
- Step 1: Write the proportion equation
38,566,207.38 : 53,221,220.18 = 21,162,843.84 : x - Step 2: Convert to fraction form
38,566,207.38/53,221,220.18 = 21,162,843.84/x - Step 3: Cross multiply
38,566,207.38x = 53,221,220.18 × 21,162,843.84 - Step 4: Simplify right side
38,566,207.38x = 1,126,312,371,643,596.75 - Step 5: Solve for x
x = 1,126,312,371,643,596.75/38,566,207.38 - Step 6: Final answer
x = 29,204,644.38
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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.