Finding the Fourth Proportional to 20,729,497.05, 28,606,804.83 and 11,437,066.53
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Solution
The fourth proportional to 20,729,497.05, 28,606,804.83 and 11,437,066.53 is: 15,783,206.38
Step by Step Solution
- Step 1: Write the proportion equation
20,729,497.05 : 28,606,804.83 = 11,437,066.53 : x - Step 2: Convert to fraction form
20,729,497.05/28,606,804.83 = 11,437,066.53/x - Step 3: Cross multiply
20,729,497.05x = 28,606,804.83 × 11,437,066.53 - Step 4: Simplify right side
20,729,497.05x = 327,177,930,051,435.31 - Step 5: Solve for x
x = 327,177,930,051,435.31/20,729,497.05 - Step 6: Final answer
x = 15,783,206.38
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1.5x scale
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.