Finding the Fourth Proportional to 66,511,203.20, 99,799,982.40 and 37,779,401.60
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Solution
The fourth proportional to 66,511,203.20, 99,799,982.40 and 37,779,401.60 is: 56,687,947.79
Step by Step Solution
- Step 1: Write the proportion equation
66,511,203.20 : 99,799,982.40 = 37,779,401.60 : x - Step 2: Convert to fraction form
66,511,203.20/99,799,982.40 = 37,779,401.60/x - Step 3: Cross multiply
66,511,203.20x = 99,799,982.40 × 37,779,401.60 - Step 4: Simplify right side
66,511,203.20x = 3,770,383,614,762,532 - Step 5: Solve for x
x = 3,770,383,614,762,532/66,511,203.20 - Step 6: Final answer
x = 56,687,947.79
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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.