Finding the Fourth Proportional to 5,157,907,618.35, 7,738,379,380.50 and 1,664,247,551.79
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Solution
The fourth proportional to 5,157,907,618.35, 7,738,379,380.50 and 1,664,247,551.79 is: 2,496,861,109.53
Step by Step Solution
- Step 1: Write the proportion equation
5,157,907,618.35 : 7,738,379,380.50 = 1,664,247,551.79 : x - Step 2: Convert to fraction form
5,157,907,618.35/7,738,379,380.50 = 1,664,247,551.79/x - Step 3: Cross multiply
5,157,907,618.35x = 7,738,379,380.50 × 1,664,247,551.79 - Step 4: Simplify right side
5,157,907,618.35x = 12,878,578,938,819,342,336 - Step 5: Solve for x
x = 12,878,578,938,819,342,336/5,157,907,618.35 - Step 6: Final answer
x = 2,496,861,109.53
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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.