Finding the Fourth Proportional to 128,304,896.10, 192,457,344.15 and 125,753,979.30
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Solution
The fourth proportional to 128,304,896.10, 192,457,344.15 and 125,753,979.30 is: 188,630,968.95
Step by Step Solution
- Step 1: Write the proportion equation
128,304,896.10 : 192,457,344.15 = 125,753,979.30 : x - Step 2: Convert to fraction form
128,304,896.10/192,457,344.15 = 125,753,979.30/x - Step 3: Cross multiply
128,304,896.10x = 192,457,344.15 × 125,753,979.30 - Step 4: Simplify right side
128,304,896.10x = 24,202,276,872,372,076 - Step 5: Solve for x
x = 24,202,276,872,372,076/128,304,896.10 - Step 6: Final answer
x = 188,630,968.95
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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.