Finding the Fourth Proportional to 8,213,959,920.87, 12,320,920,723.42 and 5,395,544,673.94
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Solution
The fourth proportional to 8,213,959,920.87, 12,320,920,723.42 and 5,395,544,673.94 is: 8,093,304,426.58
Step by Step Solution
- Step 1: Write the proportion equation
8,213,959,920.87 : 12,320,920,723.42 = 5,395,544,673.94 : x - Step 2: Convert to fraction form
8,213,959,920.87/12,320,920,723.42 = 5,395,544,673.94/x - Step 3: Cross multiply
8,213,959,920.87x = 12,320,920,723.42 × 5,395,544,673.94 - Step 4: Simplify right side
8,213,959,920.87x = 66,478,078,187,305,934,848 - Step 5: Solve for x
x = 66,478,078,187,305,934,848/8,213,959,920.87 - Step 6: Final answer
x = 8,093,304,426.58
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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.