Finding the Fourth Proportional to 15,077,208.78, 20,806,532.37 and 8,201,674.44
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Solution
The fourth proportional to 15,077,208.78, 20,806,532.37 and 8,201,674.44 is: 11,318,302.16
Step by Step Solution
- Step 1: Write the proportion equation
15,077,208.78 : 20,806,532.37 = 8,201,674.44 : x - Step 2: Convert to fraction form
15,077,208.78/20,806,532.37 = 8,201,674.44/x - Step 3: Cross multiply
15,077,208.78x = 20,806,532.37 × 8,201,674.44 - Step 4: Simplify right side
15,077,208.78x = 170,648,404,724,061.62 - Step 5: Solve for x
x = 170,648,404,724,061.62/15,077,208.78 - Step 6: Final answer
x = 11,318,302.16
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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.