Finding the Fourth Proportional to 492,361,620.80, 738,542,431.20 and 237,557,652.80
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Solution
The fourth proportional to 492,361,620.80, 738,542,431.20 and 237,557,652.80 is: 356,336,479.20
Step by Step Solution
- Step 1: Write the proportion equation
492,361,620.80 : 738,542,431.20 = 237,557,652.80 : x - Step 2: Convert to fraction form
492,361,620.80/738,542,431.20 = 237,557,652.80/x - Step 3: Cross multiply
492,361,620.80x = 738,542,431.20 × 237,557,652.80 - Step 4: Simplify right side
492,361,620.80x = 175,446,406,449,077,504 - Step 5: Solve for x
x = 175,446,406,449,077,504/492,361,620.80 - Step 6: Final answer
x = 356,336,479.20
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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.