Finding the Fourth Proportional to 66,545,199.20, 99,649,837.20 and 43,702,421.60
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Solution
The fourth proportional to 66,545,199.20, 99,649,837.20 and 43,702,421.60 is: 65,443,326.49
Step by Step Solution
- Step 1: Write the proportion equation
66,545,199.20 : 99,649,837.20 = 43,702,421.60 : x - Step 2: Convert to fraction form
66,545,199.20/99,649,837.20 = 43,702,421.60/x - Step 3: Cross multiply
66,545,199.20x = 99,649,837.20 × 43,702,421.60 - Step 4: Simplify right side
66,545,199.20x = 4,354,939,197,685,764 - Step 5: Solve for x
x = 4,354,939,197,685,764/66,545,199.20 - Step 6: Final answer
x = 65,443,326.49
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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.