Finding the Fourth Proportional to 5,153,198.40, 7,731,133.92 and 1,958,379.84
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Solution
The fourth proportional to 5,153,198.40, 7,731,133.92 and 1,958,379.84 is: 2,938,077.60
Step by Step Solution
- Step 1: Write the proportion equation
5,153,198.40 : 7,731,133.92 = 1,958,379.84 : x - Step 2: Convert to fraction form
5,153,198.40/7,731,133.92 = 1,958,379.84/x - Step 3: Cross multiply
5,153,198.40x = 7,731,133.92 × 1,958,379.84 - Step 4: Simplify right side
5,153,198.40x = 15,140,496,809,268.17 - Step 5: Solve for x
x = 15,140,496,809,268.17/5,153,198.40 - Step 6: Final answer
x = 2,938,077.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.