Finding the Fourth Proportional to 27,438,854.50, 37,862,128.79 and 15,678,883.44
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Solution
The fourth proportional to 27,438,854.50, 37,862,128.79 and 15,678,883.44 is: 21,634,864.68
Step by Step Solution
- Step 1: Write the proportion equation
27,438,854.50 : 37,862,128.79 = 15,678,883.44 : x - Step 2: Convert to fraction form
27,438,854.50/37,862,128.79 = 15,678,883.44/x - Step 3: Cross multiply
27,438,854.50x = 37,862,128.79 × 15,678,883.44 - Step 4: Simplify right side
27,438,854.50x = 593,635,904,069,079.62 - Step 5: Solve for x
x = 593,635,904,069,079.62/27,438,854.50 - Step 6: Final answer
x = 21,634,864.68
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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.