Finding the Fourth Proportional to 664,307,999.20, 996,461,998.80 and 276,001,775.20
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Solution
The fourth proportional to 664,307,999.20, 996,461,998.80 and 276,001,775.20 is: 414,002,662.80
Step by Step Solution
- Step 1: Write the proportion equation
664,307,999.20 : 996,461,998.80 = 276,001,775.20 : x - Step 2: Convert to fraction form
664,307,999.20/996,461,998.80 = 276,001,775.20/x - Step 3: Cross multiply
664,307,999.20x = 996,461,998.80 × 276,001,775.20 - Step 4: Simplify right side
664,307,999.20x = 275,025,280,588,140,256 - Step 5: Solve for x
x = 275,025,280,588,140,256/664,307,999.20 - Step 6: Final answer
x = 414,002,662.80
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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.