Finding the Fourth Proportional to 66,560,579.92, 99,836,134.62 and 20,497,645.72
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Solution
The fourth proportional to 66,560,579.92, 99,836,134.62 and 20,497,645.72 is: 30,745,010.33
Step by Step Solution
- Step 1: Write the proportion equation
66,560,579.92 : 99,836,134.62 = 20,497,645.72 : x - Step 2: Convert to fraction form
66,560,579.92/99,836,134.62 = 20,497,645.72/x - Step 3: Cross multiply
66,560,579.92x = 99,836,134.62 × 20,497,645.72 - Step 4: Simplify right side
66,560,579.92x = 2,046,405,717,494,986.75 - Step 5: Solve for x
x = 2,046,405,717,494,986.75/66,560,579.92 - Step 6: Final answer
x = 30,745,010.33
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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.