Finding the Fourth Proportional to 5,339,615.18, 7,368,671.25 and 2,892,218.81
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Solution
The fourth proportional to 5,339,615.18, 7,368,671.25 and 2,892,218.81 is: 3,991,263.20
Step by Step Solution
- Step 1: Write the proportion equation
5,339,615.18 : 7,368,671.25 = 2,892,218.81 : x - Step 2: Convert to fraction form
5,339,615.18/7,368,671.25 = 2,892,218.81/x - Step 3: Cross multiply
5,339,615.18x = 7,368,671.25 × 2,892,218.81 - Step 4: Simplify right side
5,339,615.18x = 21,311,809,557,112.86 - Step 5: Solve for x
x = 21,311,809,557,112.86/5,339,615.18 - Step 6: Final answer
x = 3,991,263.20
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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.