Finding the Fourth Proportional to 212,664,823.56, 293,532,060.87 and 138,510,170.82
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Solution
The fourth proportional to 212,664,823.56, 293,532,060.87 and 138,510,170.82 is: 191,179,599.95
Step by Step Solution
- Step 1: Write the proportion equation
212,664,823.56 : 293,532,060.87 = 138,510,170.82 : x - Step 2: Convert to fraction form
212,664,823.56/293,532,060.87 = 138,510,170.82/x - Step 3: Cross multiply
212,664,823.56x = 293,532,060.87 × 138,510,170.82 - Step 4: Simplify right side
212,664,823.56x = 40,657,175,892,250,336 - Step 5: Solve for x
x = 40,657,175,892,250,336/212,664,823.56 - Step 6: Final answer
x = 191,179,599.95
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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.