Finding the Fourth Proportional to 808,529,276.70, 1,212,793,915.05 and 723,876,630.30
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Solution
The fourth proportional to 808,529,276.70, 1,212,793,915.05 and 723,876,630.30 is: 1,085,814,945.45
Step by Step Solution
- Step 1: Write the proportion equation
808,529,276.70 : 1,212,793,915.05 = 723,876,630.30 : x - Step 2: Convert to fraction form
808,529,276.70/1,212,793,915.05 = 723,876,630.30/x - Step 3: Cross multiply
808,529,276.70x = 1,212,793,915.05 × 723,876,630.30 - Step 4: Simplify right side
808,529,276.70x = 877,913,172,474,738,304 - Step 5: Solve for x
x = 877,913,172,474,738,304/808,529,276.70 - Step 6: Final answer
x = 1,085,814,945.45
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Similar ratio
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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.