Finding the Fourth Proportional to 291,288,743.60, 436,933,115.40 and 262,063,425.20
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Solution
The fourth proportional to 291,288,743.60, 436,933,115.40 and 262,063,425.20 is: 393,095,137.80
Step by Step Solution
- Step 1: Write the proportion equation
291,288,743.60 : 436,933,115.40 = 262,063,425.20 : x - Step 2: Convert to fraction form
291,288,743.60/436,933,115.40 = 262,063,425.20/x - Step 3: Cross multiply
291,288,743.60x = 436,933,115.40 × 262,063,425.20 - Step 4: Simplify right side
291,288,743.60x = 114,504,188,805,030,864 - Step 5: Solve for x
x = 114,504,188,805,030,864/291,288,743.60 - Step 6: Final answer
x = 393,095,137.80
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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.