Finding the Fourth Proportional to 664,276,431.80, 996,414,647.70 and 434,952,860.60
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Solution
The fourth proportional to 664,276,431.80, 996,414,647.70 and 434,952,860.60 is: 652,429,290.90
Step by Step Solution
- Step 1: Write the proportion equation
664,276,431.80 : 996,414,647.70 = 434,952,860.60 : x - Step 2: Convert to fraction form
664,276,431.80/996,414,647.70 = 434,952,860.60/x - Step 3: Cross multiply
664,276,431.80x = 996,414,647.70 × 434,952,860.60 - Step 4: Simplify right side
664,276,431.80x = 433,393,401,360,856,256 - Step 5: Solve for x
x = 433,393,401,360,856,256/664,276,431.80 - Step 6: Final answer
x = 652,429,290.90
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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.