Finding the Fourth Proportional to 121,152,831.44, 167,190,840.60 and 66,148,687.94
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Solution
The fourth proportional to 121,152,831.44, 167,190,840.60 and 66,148,687.94 is: 91,285,152.89
Step by Step Solution
- Step 1: Write the proportion equation
121,152,831.44 : 167,190,840.60 = 66,148,687.94 : x - Step 2: Convert to fraction form
121,152,831.44/167,190,840.60 = 66,148,687.94/x - Step 3: Cross multiply
121,152,831.44x = 167,190,840.60 × 66,148,687.94 - Step 4: Simplify right side
121,152,831.44x = 11,059,454,741,275,682 - Step 5: Solve for x
x = 11,059,454,741,275,682/121,152,831.44 - Step 6: Final answer
x = 91,285,152.89
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.