Finding the Fourth Proportional to 38,479,320.09, 53,102,494.62 and 21,732,716.16
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Solution
The fourth proportional to 38,479,320.09, 53,102,494.62 and 21,732,716.16 is: 29,991,731.67
Step by Step Solution
- Step 1: Write the proportion equation
38,479,320.09 : 53,102,494.62 = 21,732,716.16 : x - Step 2: Convert to fraction form
38,479,320.09/53,102,494.62 = 21,732,716.16/x - Step 3: Cross multiply
38,479,320.09x = 53,102,494.62 × 21,732,716.16 - Step 4: Simplify right side
38,479,320.09x = 1,154,061,442,964,387 - Step 5: Solve for x
x = 1,154,061,442,964,387/38,479,320.09 - Step 6: Final answer
x = 29,991,731.67
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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.