Finding the Fourth Proportional to 313,376,906.70, 439,181,165.70 and 313,376,906.70
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Solution
The fourth proportional to 313,376,906.70, 439,181,165.70 and 313,376,906.70 is: 439,181,165.70
Step by Step Solution
- Step 1: Write the proportion equation
313,376,906.70 : 439,181,165.70 = 313,376,906.70 : x - Step 2: Convert to fraction form
313,376,906.70/439,181,165.70 = 313,376,906.70/x - Step 3: Cross multiply
313,376,906.70x = 439,181,165.70 × 313,376,906.70 - Step 4: Simplify right side
313,376,906.70x = 137,629,235,187,966,128 - Step 5: Solve for x
x = 137,629,235,187,966,128/313,376,906.70 - Step 6: Final answer
x = 439,181,165.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.