Finding the Fourth Proportional to 75,571,094.56, 113,356,952.88 and 20,987,980.96
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Solution
The fourth proportional to 75,571,094.56, 113,356,952.88 and 20,987,980.96 is: 31,482,057.82
Step by Step Solution
- Step 1: Write the proportion equation
75,571,094.56 : 113,356,952.88 = 20,987,980.96 : x - Step 2: Convert to fraction form
75,571,094.56/113,356,952.88 = 20,987,980.96/x - Step 3: Cross multiply
75,571,094.56x = 113,356,952.88 × 20,987,980.96 - Step 4: Simplify right side
75,571,094.56x = 2,379,133,568,729,057 - Step 5: Solve for x
x = 2,379,133,568,729,057/75,571,094.56 - Step 6: Final answer
x = 31,482,057.82
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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.