Finding the Fourth Proportional to 518,319,038.40, 777,478,557.60 and 324,608,793.90
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Solution
The fourth proportional to 518,319,038.40, 777,478,557.60 and 324,608,793.90 is: 486,913,190.85
Step by Step Solution
- Step 1: Write the proportion equation
518,319,038.40 : 777,478,557.60 = 324,608,793.90 : x - Step 2: Convert to fraction form
518,319,038.40/777,478,557.60 = 324,608,793.90/x - Step 3: Cross multiply
518,319,038.40x = 777,478,557.60 × 324,608,793.90 - Step 4: Simplify right side
518,319,038.40x = 252,376,376,865,647,680 - Step 5: Solve for x
x = 252,376,376,865,647,680/518,319,038.40 - Step 6: Final answer
x = 486,913,190.85
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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.