Finding the Fourth Proportional to 393,662,209.20, 590,493,313.80 and 291,625,537.20
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Solution
The fourth proportional to 393,662,209.20, 590,493,313.80 and 291,625,537.20 is: 437,438,305.80
Step by Step Solution
- Step 1: Write the proportion equation
393,662,209.20 : 590,493,313.80 = 291,625,537.20 : x - Step 2: Convert to fraction form
393,662,209.20/590,493,313.80 = 291,625,537.20/x - Step 3: Cross multiply
393,662,209.20x = 590,493,313.80 × 291,625,537.20 - Step 4: Simplify right side
393,662,209.20x = 172,202,929,849,933,152 - Step 5: Solve for x
x = 172,202,929,849,933,152/393,662,209.20 - Step 6: Final answer
x = 437,438,305.80
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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.