Finding the Fourth Proportional to 27,519,625.92, 37,977,108.06 and 15,129,930.15
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Solution
The fourth proportional to 27,519,625.92, 37,977,108.06 and 15,129,930.15 is: 20,879,316.96
Step by Step Solution
- Step 1: Write the proportion equation
27,519,625.92 : 37,977,108.06 = 15,129,930.15 : x - Step 2: Convert to fraction form
27,519,625.92/37,977,108.06 = 15,129,930.15/x - Step 3: Cross multiply
27,519,625.92x = 37,977,108.06 × 15,129,930.15 - Step 4: Simplify right side
27,519,625.92x = 574,590,992,246,802 - Step 5: Solve for x
x = 574,590,992,246,802/27,519,625.92 - Step 6: Final answer
x = 20,879,316.96
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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.