Finding the Fourth Proportional to 235,348,239.85, 324,770,818.21 and 128,058,005.18
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Solution
The fourth proportional to 235,348,239.85, 324,770,818.21 and 128,058,005.18 is: 176,714,740.45
Step by Step Solution
- Step 1: Write the proportion equation
235,348,239.85 : 324,770,818.21 = 128,058,005.18 : x - Step 2: Convert to fraction form
235,348,239.85/324,770,818.21 = 128,058,005.18/x - Step 3: Cross multiply
235,348,239.85x = 324,770,818.21 × 128,058,005.18 - Step 4: Simplify right side
235,348,239.85x = 41,589,503,120,228,192 - Step 5: Solve for x
x = 41,589,503,120,228,192/235,348,239.85 - Step 6: Final answer
x = 176,714,740.45
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1.5x scale
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.