Finding the Fourth Proportional to 1,255,777,056.53, 1,883,263,866.39 and 415,263,662.92
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Solution
The fourth proportional to 1,255,777,056.53, 1,883,263,866.39 and 415,263,662.92 is: 622,762,653.08
Step by Step Solution
- Step 1: Write the proportion equation
1,255,777,056.53 : 1,883,263,866.39 = 415,263,662.92 : x - Step 2: Convert to fraction form
1,255,777,056.53/1,883,263,866.39 = 415,263,662.92/x - Step 3: Cross multiply
1,255,777,056.53x = 1,883,263,866.39 × 415,263,662.92 - Step 4: Simplify right side
1,255,777,056.53x = 782,051,051,401,992,960 - Step 5: Solve for x
x = 782,051,051,401,992,960/1,255,777,056.53 - Step 6: Final answer
x = 622,762,653.08
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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.