Finding the Fourth Proportional to 419,905,007.70, 629,857,511.55 and 317,868,335.70
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Solution
The fourth proportional to 419,905,007.70, 629,857,511.55 and 317,868,335.70 is: 476,802,503.55
Step by Step Solution
- Step 1: Write the proportion equation
419,905,007.70 : 629,857,511.55 = 317,868,335.70 : x - Step 2: Convert to fraction form
419,905,007.70/629,857,511.55 = 317,868,335.70/x - Step 3: Cross multiply
419,905,007.70x = 629,857,511.55 × 317,868,335.70 - Step 4: Simplify right side
419,905,007.70x = 200,211,758,924,542,016 - Step 5: Solve for x
x = 200,211,758,924,542,016/419,905,007.70 - Step 6: Final answer
x = 476,802,503.55
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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.