Finding the Fourth Proportional to 800,947,274.40, 1,201,420,911.60 and 744,827,104.80
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Solution
The fourth proportional to 800,947,274.40, 1,201,420,911.60 and 744,827,104.80 is: 1,117,240,657.20
Step by Step Solution
- Step 1: Write the proportion equation
800,947,274.40 : 1,201,420,911.60 = 744,827,104.80 : x - Step 2: Convert to fraction form
800,947,274.40/1,201,420,911.60 = 744,827,104.80/x - Step 3: Cross multiply
800,947,274.40x = 1,201,420,911.60 × 744,827,104.80 - Step 4: Simplify right side
800,947,274.40x = 894,850,859,233,204,608 - Step 5: Solve for x
x = 894,850,859,233,204,608/800,947,274.40 - Step 6: Final answer
x = 1,117,240,657.20
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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.