Finding the Fourth Proportional to 11,139,976.82, 15,372,938.93 and 6,177,617.38
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Solution
The fourth proportional to 11,139,976.82, 15,372,938.93 and 6,177,617.38 is: 8,524,984.95
Step by Step Solution
- Step 1: Write the proportion equation
11,139,976.82 : 15,372,938.93 = 6,177,617.38 : x - Step 2: Convert to fraction form
11,139,976.82/15,372,938.93 = 6,177,617.38/x - Step 3: Cross multiply
11,139,976.82x = 15,372,938.93 × 6,177,617.38 - Step 4: Simplify right side
11,139,976.82x = 94,968,134,715,646.59 - Step 5: Solve for x
x = 94,968,134,715,646.59/11,139,976.82 - Step 6: Final answer
x = 8,524,984.95
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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.