Finding the Fourth Proportional to 128,122,310.25, 192,490,060.23 and 82,154,241.14
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Solution
The fourth proportional to 128,122,310.25, 192,490,060.23 and 82,154,241.14 is: 123,427,955.63
Step by Step Solution
- Step 1: Write the proportion equation
128,122,310.25 : 192,490,060.23 = 82,154,241.14 : x - Step 2: Convert to fraction form
128,122,310.25/192,490,060.23 = 82,154,241.14/x - Step 3: Cross multiply
128,122,310.25x = 192,490,060.23 × 82,154,241.14 - Step 4: Simplify right side
128,122,310.25x = 15,813,874,824,226,094 - Step 5: Solve for x
x = 15,813,874,824,226,094/128,122,310.25 - Step 6: Final answer
x = 123,427,955.63
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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.