Finding the Fourth Proportional to 27,519,616.91, 37,977,095.63 and 15,129,921.14
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Solution
The fourth proportional to 27,519,616.91, 37,977,095.63 and 15,129,921.14 is: 20,879,304.52
Step by Step Solution
- Step 1: Write the proportion equation
27,519,616.91 : 37,977,095.63 = 15,129,921.14 : x - Step 2: Convert to fraction form
27,519,616.91/37,977,095.63 = 15,129,921.14/x - Step 3: Cross multiply
27,519,616.91x = 37,977,095.63 × 15,129,921.14 - Step 4: Simplify right side
27,519,616.91x = 574,590,461,861,081 - Step 5: Solve for x
x = 574,590,461,861,081/27,519,616.91 - Step 6: Final answer
x = 20,879,304.52
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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.