Finding the Fourth Proportional to 345,916,887.68, 477,351,048.32 and 206,764,369.92
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Solution
The fourth proportional to 345,916,887.68, 477,351,048.32 and 206,764,369.92 is: 285,326,308.87
Step by Step Solution
- Step 1: Write the proportion equation
345,916,887.68 : 477,351,048.32 = 206,764,369.92 : x - Step 2: Convert to fraction form
345,916,887.68/477,351,048.32 = 206,764,369.92/x - Step 3: Cross multiply
345,916,887.68x = 477,351,048.32 × 206,764,369.92 - Step 4: Simplify right side
345,916,887.68x = 98,699,188,736,536,272 - Step 5: Solve for x
x = 98,699,188,736,536,272/345,916,887.68 - Step 6: Final answer
x = 285,326,308.87
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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.