Finding the Fourth Proportional to 27,904,650.56, 38,511,606.84 and 15,515,979.20
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Solution
The fourth proportional to 27,904,650.56, 38,511,606.84 and 15,515,979.20 is: 21,413,824.53
Step by Step Solution
- Step 1: Write the proportion equation
27,904,650.56 : 38,511,606.84 = 15,515,979.20 : x - Step 2: Convert to fraction form
27,904,650.56/38,511,606.84 = 15,515,979.20/x - Step 3: Cross multiply
27,904,650.56x = 38,511,606.84 × 15,515,979.20 - Step 4: Simplify right side
27,904,650.56x = 597,545,290,688,017.75 - Step 5: Solve for x
x = 597,545,290,688,017.75/27,904,650.56 - Step 6: Final answer
x = 21,413,824.53
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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.