Finding the Fourth Proportional to 76,668,170.40, 114,415,490.70 and 68,489,293.50
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Solution
The fourth proportional to 76,668,170.40, 114,415,490.70 and 68,489,293.50 is: 102,209,770.79
Step by Step Solution
- Step 1: Write the proportion equation
76,668,170.40 : 114,415,490.70 = 68,489,293.50 : x - Step 2: Convert to fraction form
76,668,170.40/114,415,490.70 = 68,489,293.50/x - Step 3: Cross multiply
76,668,170.40x = 114,415,490.70 × 68,489,293.50 - Step 4: Simplify right side
76,668,170.40x = 7,836,236,123,498,821 - Step 5: Solve for x
x = 7,836,236,123,498,821/76,668,170.40 - Step 6: Final answer
x = 102,209,770.79
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.