Finding the Fourth Proportional to 234,279,257.64, 323,304,817.68 and 128,432,484.96
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Solution
The fourth proportional to 234,279,257.64, 323,304,817.68 and 128,432,484.96 is: 177,236,523.42
Step by Step Solution
- Step 1: Write the proportion equation
234,279,257.64 : 323,304,817.68 = 128,432,484.96 : x - Step 2: Convert to fraction form
234,279,257.64/323,304,817.68 = 128,432,484.96/x - Step 3: Cross multiply
234,279,257.64x = 323,304,817.68 × 128,432,484.96 - Step 4: Simplify right side
234,279,257.64x = 41,522,841,134,182,144 - Step 5: Solve for x
x = 41,522,841,134,182,144/234,279,257.64 - Step 6: Final answer
x = 177,236,523.42
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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.