Finding the Fourth Proportional to 215,703,905.55, 323,555,858.33 and 179,831,638.05
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Solution
The fourth proportional to 215,703,905.55, 323,555,858.33 and 179,831,638.05 is: 269,747,457.08
Step by Step Solution
- Step 1: Write the proportion equation
215,703,905.55 : 323,555,858.33 = 179,831,638.05 : x - Step 2: Convert to fraction form
215,703,905.55/323,555,858.33 = 179,831,638.05/x - Step 3: Cross multiply
215,703,905.55x = 323,555,858.33 × 179,831,638.05 - Step 4: Simplify right side
215,703,905.55x = 58,185,580,003,258,480 - Step 5: Solve for x
x = 58,185,580,003,258,480/215,703,905.55 - Step 6: Final answer
x = 269,747,457.08
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.