Finding the Fourth Proportional to 1,274,474,383.80, 1,911,711,575.70 and 930,100,615.80
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Solution
The fourth proportional to 1,274,474,383.80, 1,911,711,575.70 and 930,100,615.80 is: 1,395,150,923.70
Step by Step Solution
- Step 1: Write the proportion equation
1,274,474,383.80 : 1,911,711,575.70 = 930,100,615.80 : x - Step 2: Convert to fraction form
1,274,474,383.80/1,911,711,575.70 = 930,100,615.80/x - Step 3: Cross multiply
1,274,474,383.80x = 1,911,711,575.70 × 930,100,615.80 - Step 4: Simplify right side
1,274,474,383.80x = 1,778,084,113,790,558,208 - Step 5: Solve for x
x = 1,778,084,113,790,558,208/1,274,474,383.80 - Step 6: Final answer
x = 1,395,150,923.70
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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.