Finding the Fourth Proportional to 9,720,985.97, 13,415,368.22 and 5,591,018.26
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Solution
The fourth proportional to 9,720,985.97, 13,415,368.22 and 5,591,018.26 is: 7,715,839.62
Step by Step Solution
- Step 1: Write the proportion equation
9,720,985.97 : 13,415,368.22 = 5,591,018.26 : x - Step 2: Convert to fraction form
9,720,985.97/13,415,368.22 = 5,591,018.26/x - Step 3: Cross multiply
9,720,985.97x = 13,415,368.22 × 5,591,018.26 - Step 4: Simplify right side
9,720,985.97x = 75,005,568,621,150.19 - Step 5: Solve for x
x = 75,005,568,621,150.19/9,720,985.97 - Step 6: Final answer
x = 7,715,839.62
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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.