Finding the Fourth Proportional to 90,886,455.12, 136,397,392.20 and 66,687,912.48
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Solution
The fourth proportional to 90,886,455.12, 136,397,392.20 and 66,687,912.48 is: 100,081,550.56
Step by Step Solution
- Step 1: Write the proportion equation
90,886,455.12 : 136,397,392.20 = 66,687,912.48 : x - Step 2: Convert to fraction form
90,886,455.12/136,397,392.20 = 66,687,912.48/x - Step 3: Cross multiply
90,886,455.12x = 136,397,392.20 × 66,687,912.48 - Step 4: Simplify right side
90,886,455.12x = 9,096,057,353,533,834 - Step 5: Solve for x
x = 9,096,057,353,533,834/90,886,455.12 - Step 6: Final answer
x = 100,081,550.56
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.