Finding the Fourth Proportional to 641,354,541.80, 962,031,812.70 and 318,868,269.80
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Solution
The fourth proportional to 641,354,541.80, 962,031,812.70 and 318,868,269.80 is: 478,302,404.70
Step by Step Solution
- Step 1: Write the proportion equation
641,354,541.80 : 962,031,812.70 = 318,868,269.80 : x - Step 2: Convert to fraction form
641,354,541.80/962,031,812.70 = 318,868,269.80/x - Step 3: Cross multiply
641,354,541.80x = 962,031,812.70 × 318,868,269.80 - Step 4: Simplify right side
641,354,541.80x = 306,761,419,608,206,720 - Step 5: Solve for x
x = 306,761,419,608,206,720/641,354,541.80 - Step 6: Final answer
x = 478,302,404.70
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Similar ratio
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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.