Finding the Fourth Proportional to 394,167,939.06, 591,310,699.91 and 145,154,049.79
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Solution
The fourth proportional to 394,167,939.06, 591,310,699.91 and 145,154,049.79 is: 217,752,724.84
Step by Step Solution
- Step 1: Write the proportion equation
394,167,939.06 : 591,310,699.91 = 145,154,049.79 : x - Step 2: Convert to fraction form
394,167,939.06/591,310,699.91 = 145,154,049.79/x - Step 3: Cross multiply
394,167,939.06x = 591,310,699.91 × 145,154,049.79 - Step 4: Simplify right side
394,167,939.06x = 85,831,142,776,095,872 - Step 5: Solve for x
x = 85,831,142,776,095,872/394,167,939.06 - Step 6: Final answer
x = 217,752,724.84
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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.