Finding the Fourth Proportional to 66,449,527.20, 99,674,290.80 and 49,443,415.20
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Solution
The fourth proportional to 66,449,527.20, 99,674,290.80 and 49,443,415.20 is: 74,165,122.80
Step by Step Solution
- Step 1: Write the proportion equation
66,449,527.20 : 99,674,290.80 = 49,443,415.20 : x - Step 2: Convert to fraction form
66,449,527.20/99,674,290.80 = 49,443,415.20/x - Step 3: Cross multiply
66,449,527.20x = 99,674,290.80 × 49,443,415.20 - Step 4: Simplify right side
66,449,527.20x = 4,928,237,344,789,940 - Step 5: Solve for x
x = 4,928,237,344,789,940/66,449,527.20 - Step 6: Final answer
x = 74,165,122.80
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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.