Finding the Fourth Proportional to 239,746,818.72, 330,850,611 and 129,738,532.80
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Solution
The fourth proportional to 239,746,818.72, 330,850,611 and 129,738,532.80 is: 179,039,175.90
Step by Step Solution
- Step 1: Write the proportion equation
239,746,818.72 : 330,850,611 = 129,738,532.80 : x - Step 2: Convert to fraction form
239,746,818.72/330,850,611 = 129,738,532.80/x - Step 3: Cross multiply
239,746,818.72x = 330,850,611 × 129,738,532.80 - Step 4: Simplify right side
239,746,818.72x = 42,924,072,847,123,536 - Step 5: Solve for x
x = 42,924,072,847,123,536/239,746,818.72 - Step 6: Final answer
x = 179,039,175.90
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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.