Finding the Fourth Proportional to 160,397,137.44, 221,348,474.82 and 87,058,279.44
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Solution
The fourth proportional to 160,397,137.44, 221,348,474.82 and 87,058,279.44 is: 120,140,656.39
Step by Step Solution
- Step 1: Write the proportion equation
160,397,137.44 : 221,348,474.82 = 87,058,279.44 : x - Step 2: Convert to fraction form
160,397,137.44/221,348,474.82 = 87,058,279.44/x - Step 3: Cross multiply
160,397,137.44x = 221,348,474.82 × 87,058,279.44 - Step 4: Simplify right side
160,397,137.44x = 19,270,217,374,497,364 - Step 5: Solve for x
x = 19,270,217,374,497,364/160,397,137.44 - Step 6: Final answer
x = 120,140,656.39
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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.