Finding the Fourth Proportional to 128,304,881.10, 192,457,321.65 and 125,753,964.30
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Solution
The fourth proportional to 128,304,881.10, 192,457,321.65 and 125,753,964.30 is: 188,630,946.45
Step by Step Solution
- Step 1: Write the proportion equation
128,304,881.10 : 192,457,321.65 = 125,753,964.30 : x - Step 2: Convert to fraction form
128,304,881.10/192,457,321.65 = 125,753,964.30/x - Step 3: Cross multiply
128,304,881.10x = 192,457,321.65 × 125,753,964.30 - Step 4: Simplify right side
128,304,881.10x = 24,202,271,156,047,716 - Step 5: Solve for x
x = 24,202,271,156,047,716/128,304,881.10 - Step 6: Final answer
x = 188,630,946.45
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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.