Finding the Fourth Proportional to 87,859,973.32, 121,244,138.11 and 48,166,146.80
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Solution
The fourth proportional to 87,859,973.32, 121,244,138.11 and 48,166,146.80 is: 66,467,843.48
Step by Step Solution
- Step 1: Write the proportion equation
87,859,973.32 : 121,244,138.11 = 48,166,146.80 : x - Step 2: Convert to fraction form
87,859,973.32/121,244,138.11 = 48,166,146.80/x - Step 3: Cross multiply
87,859,973.32x = 121,244,138.11 × 48,166,146.80 - Step 4: Simplify right side
87,859,973.32x = 5,839,862,954,924,856 - Step 5: Solve for x
x = 5,839,862,954,924,856/87,859,973.32 - Step 6: Final answer
x = 66,467,843.48
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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.