Finding the Fourth Proportional to 347,728,242.80, 521,592,364.20 and 311,448,537.20
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Solution
The fourth proportional to 347,728,242.80, 521,592,364.20 and 311,448,537.20 is: 467,172,805.80
Step by Step Solution
- Step 1: Write the proportion equation
347,728,242.80 : 521,592,364.20 = 311,448,537.20 : x - Step 2: Convert to fraction form
347,728,242.80/521,592,364.20 = 311,448,537.20/x - Step 3: Cross multiply
347,728,242.80x = 521,592,364.20 × 311,448,537.20 - Step 4: Simplify right side
347,728,242.80x = 162,449,178,844,779,648 - Step 5: Solve for x
x = 162,449,178,844,779,648/347,728,242.80 - Step 6: Final answer
x = 467,172,805.80
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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.