Finding the Fourth Proportional to 201,065,912, 277,493,479.20 and 121,724,705.60
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Solution
The fourth proportional to 201,065,912, 277,493,479.20 and 121,724,705.60 is: 167,993,727.66
Step by Step Solution
- Step 1: Write the proportion equation
201,065,912 : 277,493,479.20 = 121,724,705.60 : x - Step 2: Convert to fraction form
201,065,912/277,493,479.20 = 121,724,705.60/x - Step 3: Cross multiply
201,065,912x = 277,493,479.20 × 121,724,705.60 - Step 4: Simplify right side
201,065,912x = 33,777,812,061,539,720 - Step 5: Solve for x
x = 33,777,812,061,539,720/201,065,912 - Step 6: Final answer
x = 167,993,727.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.