Finding the Fourth Proportional to 20,199,180.95, 27,875,046.74 and 11,497,913.03
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Solution
The fourth proportional to 20,199,180.95, 27,875,046.74 and 11,497,913.03 is: 15,867,220.76
Step by Step Solution
- Step 1: Write the proportion equation
20,199,180.95 : 27,875,046.74 = 11,497,913.03 : x - Step 2: Convert to fraction form
20,199,180.95/27,875,046.74 = 11,497,913.03/x - Step 3: Cross multiply
20,199,180.95x = 27,875,046.74 × 11,497,913.03 - Step 4: Simplify right side
20,199,180.95x = 320,504,863,135,903.06 - Step 5: Solve for x
x = 320,504,863,135,903.06/20,199,180.95 - Step 6: Final answer
x = 15,867,220.76
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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.