Finding the Fourth Proportional to 476,928,034.20, 715,392,051.30 and 331,809,211.80
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Solution
The fourth proportional to 476,928,034.20, 715,392,051.30 and 331,809,211.80 is: 497,713,817.70
Step by Step Solution
- Step 1: Write the proportion equation
476,928,034.20 : 715,392,051.30 = 331,809,211.80 : x - Step 2: Convert to fraction form
476,928,034.20/715,392,051.30 = 331,809,211.80/x - Step 3: Cross multiply
476,928,034.20x = 715,392,051.30 × 331,809,211.80 - Step 4: Simplify right side
476,928,034.20x = 237,373,672,669,838,144 - Step 5: Solve for x
x = 237,373,672,669,838,144/476,928,034.20 - Step 6: Final answer
x = 497,713,817.70
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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.