Finding the Fourth Proportional to 39,183,241.07, 54,072,907.28 and 21,542,443.79
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Solution
The fourth proportional to 39,183,241.07, 54,072,907.28 and 21,542,443.79 is: 29,728,591.45
Step by Step Solution
- Step 1: Write the proportion equation
39,183,241.07 : 54,072,907.28 = 21,542,443.79 : x - Step 2: Convert to fraction form
39,183,241.07/54,072,907.28 = 21,542,443.79/x - Step 3: Cross multiply
39,183,241.07x = 54,072,907.28 × 21,542,443.79 - Step 4: Simplify right side
39,183,241.07x = 1,164,862,565,263,205 - Step 5: Solve for x
x = 1,164,862,565,263,205/39,183,241.07 - Step 6: Final answer
x = 29,728,591.45
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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.