Finding the Fourth Proportional to 880,590,915.92, 1,215,216,245.80 and 484,120,650.99
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Solution
The fourth proportional to 880,590,915.92, 1,215,216,245.80 and 484,120,650.99 is: 668,086,928.20
Step by Step Solution
- Step 1: Write the proportion equation
880,590,915.92 : 1,215,216,245.80 = 484,120,650.99 : x - Step 2: Convert to fraction form
880,590,915.92/1,215,216,245.80 = 484,120,650.99/x - Step 3: Cross multiply
880,590,915.92x = 1,215,216,245.80 × 484,120,650.99 - Step 4: Simplify right side
880,590,915.92x = 588,311,280,015,457,792 - Step 5: Solve for x
x = 588,311,280,015,457,792/880,590,915.92 - Step 6: Final answer
x = 668,086,928.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.