Finding the Fourth Proportional to 27,519,631.16, 37,977,115.30 and 15,129,935.36
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Solution
The fourth proportional to 27,519,631.16, 37,977,115.30 and 15,129,935.36 is: 20,879,324.16
Step by Step Solution
- Step 1: Write the proportion equation
27,519,631.16 : 37,977,115.30 = 15,129,935.36 : x - Step 2: Convert to fraction form
27,519,631.16/37,977,115.30 = 15,129,935.36/x - Step 3: Cross multiply
27,519,631.16x = 37,977,115.30 × 15,129,935.36 - Step 4: Simplify right side
27,519,631.16x = 574,591,299,648,267 - Step 5: Solve for x
x = 574,591,299,648,267/27,519,631.16 - Step 6: Final answer
x = 20,879,324.16
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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.