Finding the Fourth Proportional to 20,287,059.65, 27,999,013.25 and 12,554,593.01
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Solution
The fourth proportional to 20,287,059.65, 27,999,013.25 and 12,554,593.01 is: 17,327,115.02
Step by Step Solution
- Step 1: Write the proportion equation
20,287,059.65 : 27,999,013.25 = 12,554,593.01 : x - Step 2: Convert to fraction form
20,287,059.65/27,999,013.25 = 12,554,593.01/x - Step 3: Cross multiply
20,287,059.65x = 27,999,013.25 × 12,554,593.01 - Step 4: Simplify right side
20,287,059.65x = 351,516,215,972,574.44 - Step 5: Solve for x
x = 351,516,215,972,574.44/20,287,059.65 - Step 6: Final answer
x = 17,327,115.02
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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.