Finding the Fourth Proportional to 525,453,621.80, 788,180,432.70 and 331,961,858.60
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Solution
The fourth proportional to 525,453,621.80, 788,180,432.70 and 331,961,858.60 is: 497,942,787.90
Step by Step Solution
- Step 1: Write the proportion equation
525,453,621.80 : 788,180,432.70 = 331,961,858.60 : x - Step 2: Convert to fraction form
525,453,621.80/788,180,432.70 = 331,961,858.60/x - Step 3: Cross multiply
525,453,621.80x = 788,180,432.70 × 331,961,858.60 - Step 4: Simplify right side
525,453,621.80x = 261,645,841,351,244,256 - Step 5: Solve for x
x = 261,645,841,351,244,256/525,453,621.80 - Step 6: Final answer
x = 497,942,787.90
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1.5x scale
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.