Finding the Fourth Proportional to 87,816,903.48, 121,187,469.22 and 48,118,125.83
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Solution
The fourth proportional to 87,816,903.48, 121,187,469.22 and 48,118,125.83 is: 66,403,091.67
Step by Step Solution
- Step 1: Write the proportion equation
87,816,903.48 : 121,187,469.22 = 48,118,125.83 : x - Step 2: Convert to fraction form
87,816,903.48/121,187,469.22 = 48,118,125.83/x - Step 3: Cross multiply
87,816,903.48x = 121,187,469.22 × 48,118,125.83 - Step 4: Simplify right side
87,816,903.48x = 5,831,313,892,220,980 - Step 5: Solve for x
x = 5,831,313,892,220,980/87,816,903.48 - Step 6: Final answer
x = 66,403,091.67
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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.