Finding the Fourth Proportional to 851,489,372.80, 1,277,234,059.20 and 667,823,363.20
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Solution
The fourth proportional to 851,489,372.80, 1,277,234,059.20 and 667,823,363.20 is: 1,001,735,044.80
Step by Step Solution
- Step 1: Write the proportion equation
851,489,372.80 : 1,277,234,059.20 = 667,823,363.20 : x - Step 2: Convert to fraction form
851,489,372.80/1,277,234,059.20 = 667,823,363.20/x - Step 3: Cross multiply
851,489,372.80x = 1,277,234,059.20 × 667,823,363.20 - Step 4: Simplify right side
851,489,372.80x = 852,966,745,008,531,968 - Step 5: Solve for x
x = 852,966,745,008,531,968/851,489,372.80 - Step 6: Final answer
x = 1,001,735,044.80
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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.